Dr. Charles A Hjerpe Fellowship

Mike Van Amburgh is a Professor in the Department of Animal Science and a Stephen H. Weiss Presidential Fellow at Cornell University where he has a dual appointment in teaching and research. 

Faculty experience

1995-2002: Assistant Professor, Dept. of Animal Science, Cornell University

2002-2013: Associate Professor, Dept. of Animal Science, Cornell University

2013- Present: Full Professor, Dept. of Animal Science, Cornell University

Teaching experience

1995-2023: Professor, Cornell University.  AnSc 1160 – Lead instructor for 3 years; AnSc 2500 – Lead instructor for 5 years, co-instructor for 4 years; AnSc 2550 – Lead instructor for 28 years; AnSc 3511 – Lead instructor for 8 years, co- instructor for 3 years;  AnSc 3560 – lead instructor for 18 years; AnSc 4110 – Lead instructor for 29 years; AnSc 4120- Co-instructor for 17 years; AnSc 4510 – Lead instructor for 10 years, co-instructor for 10 years; AnSc 4560 – Lead instructor for 9 years, co-instructor for 12 years. AnSc 6130 – Lead instructor for 2 years.

His undergraduate degree is from The Ohio State University and his Ph.D. is from Cornell University.  

He leads the Cornell Dairy Fellows Program, advises approximately 30 undergraduate students, and is the Cornell University Dairy Science Club advisor. 

Mike currently leads the development of the Cornell Net Carbohydrate and Protein System (CNCPS/CPM Dairy), a nutrition evaluation and formulation model used worldwide. Through licensing, the CNCPS is used to formulate diets for approximately 70% of the dairy cows in North America.  Through the modeling effort, he focuses on enhancing the efficiency of nutrient use by ruminants to improve the environmental impact of animal food production.  A significant component of his current work is to understand whole animal and ruminal nitrogen metabolism and amino acid supply and requirements to enhance the productivity of high-producing lactating dairy cattle and use that information in the further development of the Cornell Net Carbohydrate and Protein System.   Further, his group is active in developing methods to better describe the interaction between forage and feed chemistry, rumen function and post-ruminal digestion to complement the model.

He has authored and co-authored over 100 journal articles and many conference proceedings. He is the recipient of several awards, including the American Dairy Science Foundation Scholar Award, the Land O’Lakes Teaching and Mentoring Award from ADSA, the American Feed Ingredient Association Award for Research, Journal of Dairy Science Most Cited Award, the CALS Professor of Merit Award, and the CALS Distinguished Advisor Award. In 2016, he was named a Stephen H. Weiss Presidential Fellow, the highest teaching award given by Cornell University.

PROFESSIONAL OVERVIEW AND PROGRAM OBJECTIVES

Research efforts in my laboratory are multifaceted but focused on several aspects of productive efficiency of dairy cattle. With increasing pressure on the dairy industry to reduce the environmental impact of cattle, my research group is working on developing a basic understanding of whole animal nitrogen metabolism and supply and efficiency of use of absorbed amino acids. We have embarked on several studies employing stable isotopes of nitrogen compounds to understand urea nitrogen recycling and the fate of intake nitrogen. This work is leading to new dietary strategies that allow nutritionists to reduce the amount of nitrogen (crude protein) fed to lactating cows while maintaining milk production thus improving the efficiency of use of absorbed feed nitrogen and reducing the amount of manure nitrogen excreted into the environment per unit of milk produced. Data from studies are being used to further develop the Cornell Net Carbohydrate and Protein System (CNCPS).

In addition, my group is furthering this work with new studies examining the role of specific amino acid limitations under conditions of marginal metabolizable protein supply. We have developed the CNCPS to be very accurate at predicting the absolute amount of intake nitrogen required to produce high volumes of energy corrected milk and enhance milk component output through improved amino acid requirements and supplies. This has allowed us to feed diets as low as 14% crude protein and maintain high levels of milk production. This is a good model to evaluate limiting amino acids, since the cows are sensitive to specific amino acid supply at the lower protein intake levels. This has direct effects on the overall efficiency of the animal and how absorbed amino acids are utilized with the goal of further enhancing the efficiency of use of protein by the lactating dairy cow.

In support of the CNCPS and enhancing productive efficiency in lactating dairy cattle, we are also developing new tools to describe how NDF digestion occurs in forages. The goal is to better describe the rate and extent of NDF digestion for use in the model with the objective of linking this to dry matter intake and whole farm forage allocation to reduce the importation of non-farm raised feeds, thus reducing the importation of nutrients such as phosphorous and nitrogen. We have developed a model that describes the rate of digestion of two NDF pools and further describes the size of the respective pools that will be used to enhance feed intake models based on physical fill effects.

Finally, the lab has a 20-year history of engaging in research to enhance our understanding of the nutrient requirements and management of calves and heifers. Previous work identified time and not nutrient intake as the primary factor influencing pre-pubertal mammary development as measured by DNA accretion. This finding has significant implications because thirty years of research into this very perplexing and controversial issue never identified any mechanism for the decreased development and this observation allows us to redirect our efforts to factors that can be manipulated and have a larger impact on future milk potential. To that point, recent work has strongly demonstrated that nutrient intake and growth rates prior to weaning have a developmental or epigenetic effect on the animal, which results in greater milk yield in the first and subsequent lactations. Further, in collaboration with colleagues, we were able to demonstrate that growth rate of the calves prior to weaning and nutrient intake from milk replacer above maintenance accounted for up to 22% of the variation in first lactation milk production. This is a significant finding and one that provides us with a new research direction with profound implications for early life management of calves and heifers. This has led us to the concept that through the supply of specific components from colostrum and nutrients from milk or milk replacer prior to weaning that we can “program†a calf to be a more productive cow.

Within the department, my research program contributes to both Food Animal Production Systems and Integrative Animal Biology.

HONORS AND AWARDS

2018: American Dairy Science Association, Most-Cited Paper Award in the Nutrition, Feeding and Calves section of the Journal of Dairy Science

2016: Stephen H. Weiss Presidential Fellow Award, Cornell University. A permanent award recognizing excellence in teaching.

2016: North American Colleges and Teachers of Agriculture and Cornell University College of Agriculture and Life Sciences Teacher of Merit Award

2016: North American Intercollegiate Dairy Challenge Founders Award for Extraordinary Contributions

2012: Donald C. Burgett Distinguished Advisor Award, College of Agriculture and Life Sciences, Cornell University

2010: Land O’ Lakes Purina Feed LLC Teaching Award for Dairy Production, American Dairy Science Association

2010: American Feed Industry Association Award for Dairy Nutrition Research, American Dairy Science Association

2008: Professor of Merit: For Outstanding Teaching and Advising, College of Agriculture and Life Sciences, Cornell University

2007: Cornell University, College of Agriculture and Life Sciences, Team Extension Award – Cornell Net Carbohydrate and Protein System Team

2004: American Dairy Science Association Foundation, Foundation Scholar Award for Outstanding Research and Teaching, American Dairy Science Association

2002: Young Scientist Award, NE Section, American Society of Animal Science and American Dairy Science Association

1998: American Dairy Science Association Outstanding Student Affiliate Advisor Award

1994: Carl S. Akey (BASF) Nutrition Scholarship

1993: Hoerscht-Celense Award of Excellence

1992: Hoerscht-Celense Award of Excellence

SABBATICALS AND STUDY LEAVES: None

ACADEMIC RESPONSIBILITIES

CURRENT ADMINISTRATIVE RESPONSIBILITIES:

Supervise Nicole McGuire, and Kelly Smith. And although not officially administrative by college or university, I spend a great deal of time administering and leading the Cornell Net Carbohydrate and Protein System team. This has both administrative (sales and licensing) and research demands. My primary responsibilities are to further develop the underlying functionality of the software through enhanced mathematical descriptions of the behavior of the rumen, ruminal metabolism and post-ruminal metabolism. The program as a licensed technology is used to formulate diets for approximately 70% of the dairy cattle in North America and is used in over 42 countries. Further work to develop the interface with the feed and nutrition industry professionals for training and support, and to help develop licensing arrangements through Cornell Research Foundation Technology Transfer Office are part of my responsibilities.

Administrative Leadership: Chair of the CURC Operations Committee

TEACHING AND ADVISING RESPONSIBILITIES:

Courses taught:

ANSC 1200. Contemporary Dairy Industry Topics and Issues. Lead instructor and coordinator. 2017-current. 1 credit course. 60% effort.

ANSC 1250 Study Trip to California Central Valley. Lead instructor 2008-current. Was a Dairy Club trip converted to a formal study trip in the last 6 years.

ANSC 4110. Applied Cattle Nutrition – Primary instructor, 1996- current 100% effort. 4 credit course.

ANSC 4120 Whole Farm Nutrient Management – co-instructor (2005 – 2010). 2 credit module – 2005-2009. 4 credit course 2010 – current. 50% effort.

ANSC 2500 Dairy Cattle – Co-taught course for 1 year (Fall 2012), lead instructor 5 years (2013-2017).

ANSC 2550 International Dairy Study Trip to Italy. 2 credit course. 100% effort every other year. Initiated as a course in 2008, prior to that was a club study trip. Initiated in 1995.

ANSC 3511 Junior Dairy Fellows Spring. 2011- current. 2 credit course. 100% effort.

ANSC 3560 International Dairy Study Trip. 2 credit course. 100% effort every other year. Lead instructor from 1996 to 2018.

ANSC 4510 Dairy Herd Business Management – one of the capstone courses for the Dairy Fellows Program. Part of teaching team responsible for farm evaluations and analyses and follow-up (2000 – current). Instructor of record starting Fall, 2011 – 3 credit course. 70% effort.

ANSC 4560 Dairy Fellows – the second of the capstone courses for the Fellows program. Lead instructor responsible for experiential learning activities, farm analyses, field trips (2000 – 2012) 30% effort. 2 credit course. 2013- current 100% effort.

ANSC 3550 Dairy Cattle Nutrition – two to three lectures, 5% effort

ANSC 3510 Dairy Cattle Management – two to three lectures, 5% effort

Vet Med. 6559 Applied Dairy Cattle Nutrition for Practitioners – two lectures. 2 credits. 5% effort

ANSC 4511 Quantitative Decision Making on Dairy Farms – lead instructor Fall 2008; co-instructor Fall 2010, 2011. 3 credit course. 20% effort 2013.

AN SC 1160. Animal Agriculture and Society – From Food to Medicine. 3 credit course. Developed and led course with colleage input and responsible for 45% of a team taught course, 2007, 2008, 2009.

Educational Innovations Developed:

Developed a student club trip in 1995 that has become an important part of our Dairy and Animal Science Program and an important study trip for a significant percentage of our undergraduate students in AnimalScience. The club trips are now courses, AnSc 2550 and 3560 and were designed as dairy study trips to European locations where dairy production, cheese making, international markets, international trade, quotas and other related topics have been discussed and learned. These trips are an extension of our experiential learning program in Dairy Fellows and the upper-level course has traveled to China as part of an exchange with China Agriculture University in Beijing. From 1996 to 2023, 1,140 students have participated in these international study trips.

Further, I worked with CALS Student Services office to develop an exchange program with the University of Parma, Italy (http://www.unipr.it/) and assisted in developing an exchange program with Harper Adams College in Shropshire, England (http://www.harper-adams.ac.uk/).

Led the development of an exit survey for graduating seniors in the Department of Animal Science that was adopted by the College of Agriculture and Life Sciences for all departments. Further to gauge student interests and awareness about their choice of a major and the opportunities within the major, I initiated an incoming freshman survey and their expectations for their education and experience in the major. This done as part of the college mandate to have some form of evaluation by which we can evaluate our curriculum and learning outcomes for the department.

Current Student Organization I Advise:

Cornell University Dairy Science Club: approximately 120 members, one of the largest undergraduate student clubs in CALS. (1995 – current)

Current Undergraduate Students Mentored in Independent Research:

Rebecca Combes

Current Undergraduate Advisees (2023-2024):

Student Name

Ainslie, Abbie – Animal Science

Ainslie, Aidan – Interdisciplinary studies

Barley, Colt – Animal Science

Beck, Clara – Animal Science

Blakemore, Kendall – Animal Science

Blesy, Brett – Animal Science

Brown, Kendall – Animal Science

DiDomenico, Stella – Animal Science

Haynes, Charlie – Animal Science

Herrick, Danielle – Animal Science

Hodge, Morgan – Animal Science

King, Lauren – Animal Science

Koval, Jack – Animal Science

Martin, Brittany – Animal Science

McCarthy, Abigail – Animal Science

Merrell, David – Animal Science

Michaud, Lincoln – Animal Science

Moody, Catherine – Animal Science

Patt, Kevin – Animal Science

Rejman, Molly – Animal Science

Sidonio, Amelia – Interdisciplinary studies

Swyers, Jenna – Animal Science

Swatling, Libby – Animal Science

Van Buren, Rachel – Animal Science

Walley, Lucas – Interdisciplinary studies

Wilbur, Sophia – Animal Science

Exchange students and research interns advised and mentored

Alessandro Zontini, Spring 2011, on exchange from Parma, Italy

Gianni di Tusa, Spring, 2011 on exchange from Parma, Italy

Davide Santospirito, Spring 2011, on exchange from Parma, Italy

Nila Eschavarria, 2011-2012 on exchange from Barcelona.

Hannah McIntyre, Fall 2011 on exchange from Lincoln University, NZ

Hanna Nilsson, Fall/Spring 2011-2012 on exchange from Sweden

Alexandra Francis, Fall/Spring 2011-2012 on exchange from Australia

Paolo Tempini, Spring 2012 on exchange from Parma, Italy

Simone Leo, Spring 2012 on exchange from Parma, Italy

Brigitte Ravera Fall 2012, on exchange from New Zealand

Laura Keenan, 2013, Lincoln University, NZ

Carlo Rossi, 2013, University of Parma, Italy

Simona Alberti, 2013, on exchange from Parma, Italy

Stephanie Williams, 2014, Lincoln University, NZ

Mariane Beline, 2015, Paulista State University (UNESP), Ilha Solteira, Brazil

Armando Carnepa, 2015, University of Parma, Italy

Angela Guido, 2015, University of Parma, Italy

Avril Helen, 2015, UCD, Dublin, Ireland

Elisa Pernetta, 2015, University of Parma, Italy

Giuseppe Tiso, 2015, University of Parma, Italy

Elisa Calludrini, 2016, University of Parma, Italy

Matteo Tonni, 2016, University of Parma, Italy

Rachel White 2016, UCD, Dublin, Ireland

Frances Evans, 2016-2017, Wales, UK

Rosario Pitino, 2017, University of Parma, Italy

Anoar Jamai Masroure University of Parma, Italy

Massimiliano Festuccia University of Parma, Italy

Christopher Heffernan, University College Dublin, Ireland

Cesare Paolucci, University of Parma, Italy

Marta Pirola, University of Parma, Italy

Daniele Zanrosso, University of Parma, Italy

Francesco Cornetti, University of Parma, Italy

Alessandro Franzoni, University of Parma, Italy

Maria Giorgia Riva, University of Parma, Italy

Marco Piacentini, University of Parma, Italy

Danese, Tommaso, University of Parma, Italy

Zanotti, Andrea, University of Parma, Italy

Vettori, Julio De Matos, University of Bologna, Italy

Other Relevant Teaching and Advising Activities, Accomplishments:

Chairperson of the Animal Science Curriculum Committee 2006-2014. I engaged the department in a curriculum review in 2007, which continued to 2013. This review resulted in the development of five new courses (1160, 3920, 3980, 4050, and 4700) and the restructuring of courses already in the course catalogue (300, 301 renumbered to 2400 and 2410 to be part of the core curriculum in Animal Science and 6060). Worked to refine learning goals, outcomes and developing learning assessments for the department as part of the university’s reaccreditation program and continuing improvement in undergraduate teaching. The committee redefined the program pathways within the major, reassessed the needs of the teaching program and further re-defined the curriculum for the department as the faculty and resources are reallocated due to retirements and shifts in teaching and programmatic need.

2023 Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Saratoga, NY: Caroline Rafferty, Emily Starceski, Blake Wadsworth and Kevin Jess. First place finish.

2022-23. Organized two international study trips to Italy and Germany for January 2023. Dr. Overton lead the Germany trip and I lead the trip to Italy. Animal Science 2550 and 3560. Forty-seven students participated in the trip to Italy focused on the dairy industry and other agricultural industries throughout Lombardia, Reggio-Emilia, Veneto, Tuscany and Lazio. Thirty-seven students participated in the trip to Germany to study dairy production systems, milk processing and learn about German history and culture.

2022. Coached and advised 18 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by the Northeast Dairy Consortium and held in Lyons Falls, NY. Mixed team competitions with 15 colleges and universities represented.

2022. Organized and directed a study tour of agricultural production in the Central Valley of California from Bakersfield to San Francisco. Fifty-four students. The tour focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production, water management and land use.

2022. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Green Bay, WI: Elizabeth Maslyn, Cole Schaap, Bryce Windecker and Alexander Dawson. Second place finish.

2021. Coached and advised 17 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by Northeast Dairy Consortium and held in Lyons Falls, NY. Mixed team competitions with 14 colleges and universities represented.

2020. Organized and directed two international study trips to Italy and China in January 2020. Animal Science 2550 and 3560. Forty-nine students participated in the trip to Italy focused on the dairy industry and other agriculturally related industries through Lombardia, Reggio-Emilia, Tuscany and Lazio. Thirty-seven students participated in the trip to China to study dairy production systems, milk processing, conduct dairy farm evaluations with students from China Agriculture University and learn about Chinese history and culture.

2019. Coached and advised 18 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by Northeast Dairy Consortium and held in Rochester, NY. Mixed team competitions.

2019. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Tifton, GA: Benjamin Dye, Nolan Feldpausch, Simon Johnson, and Christopher Sweeney. Second place finish.

2019. Organized and directed a study tour of agricultural production in the Central Valley of California. 53 students. Focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production and water management.

2018. Coached and advised 21 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by Northeast Dairy Consortium and held in New Hampshire. Mixed team competitions.

2018. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Visalia, CA: Brittany Hill, Cooper Galton, Jacob Palladino and Keith Koerner. Second place finish.

2017-2018. Organized and directed two international study trips to Italy and China in January 2018. Animal Science 2550 and 3560. Forty-five students participated in the trip to Italy focused on the dairy industry and other agriculturally related industries through Lombardia, Reggio-Emilia and Lazio. Forty-seven students participated in the trip to China to study dairy production systems, milk processing, conduct dairy farm evaluations with students from China Agriculture University and learn about culture.

2017. Organized and directed a study tour of agricultural production in the Central Valley of California. 53 students. Focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production and water management.

2017. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Visalia, CA: Clyde Sammons, Jamie St. Pierre, Grant Feldpausch and Lauren Hill. First place overall.

2016. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Syracuse, NY: Josh Landis, Colleen Smith, Kelsey Neckers, Greg Van Ravenwaay. First place overall.

2015-2016. Organized and directed two international study trips to Italy and China in January 2016. Animal Science 2550 and 3560. Fifty-five students participated in the trip to Italy focused on the dairy industry and other agriculturally related industries through Lombardia, Reggio-Emilia and Lazio. Forty-two students participated in the trip to China to study dairy production systems, milk processing, conduct dairy farm evaluations with students from China Agriculture University and learn about culture.

2015. Coached and advised 20 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by Northeast Dairy Consortium and held in Syracuse, NY. Mixed team competitions.

2015. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Syracuse, NY: Kristin King, Edward Facer, Meghan Vaill and Amanda Moretti. Second place overall.

2015. Organized and directed a study tour of agricultural production in the Central Valley of California. 55 students. Focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production and water management.

2014. oached and advised 18 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by Delaware Valley College and held in Harrisburg, PA. Mixed team competitions.

2014. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Ft. Wayne, IN: Anna Laggis, Cassie Chittenden, Ralph Cunningham, Patrick Redman. First place overall.

2013-2014. Organized and directed two international study trips to Italy and Germany in January 2014. Animal Science 2550 and 3560. Forty-one students participated in the trip to Italy focused on the dairy industry and other agriculturally related industries through Lombardia, Tuscany, Reggio-Emilia and Lazio. Fifty-one students participated in the trip to Germany to study biogas energy production, European support systems for energy, agriculture and dairy production, and culture.

2013. Coached and advised 21 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by Miner Institute and held in Chazy, NY. Mixed team competitions.

2013. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April in Ft. Wayne, IN: Anna Smith, Dylan Nelson, Matt Sharpe and Stephen Gould.

2013. Organized and directed a study tour of agricultural production in the Central Valley of California. 57 students. Focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production and water management.

2012. Coached and advised 24 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in November. Hosted by University of Maine and held in Waterville, ME. Mixed team competitions.

2012. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Ariel Garland, Daniel Durfee, Theodore Christoph, and Jordan Fisher. The team was one of 3 that placed in the Platinum category (first place) among 32 teams that competed in Virginia.

2011-2012. Organized and directed two international study trips to Italy and Germany in January and March 2012. Animal Science 2550 and 3560. Fifty-one students participated in the trip to Italy focused on the dairy industry and other agriculturally related industries through Lombardia, Tuscany, Reggio-Emilia and Lazio. Fifty-one students participated in the trip to Germany to study biogas energy production, European support systems for energy, agriculture and dairy production, and culture.

2011. Coached and advised 26 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by SUNY Morrisville and held in Watertown, NY. Mixed team competitions.

2011. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Matthew Bull, Jason McNamara, Samuel Fessenden, and Corey Kayhart. The team placed in the Platinum category (first place) among 32 teams that competed in North Carolina.

2011. Organized and directed a study tour of agricultural production in the Central Valley of California. 54 students. Focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production and water management.

2010. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Breanna Fulper, Brett Feldpausch, Shane Reynolds, Chad Wall. The team placed in the Platinum category (first place) among 32 teams that competed at Visalia, CA.

2010. Coached and advised 18 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by SUNY Alfred and held in Batavia, NY. Mixed team competitions.

2009-2010. Organized two international study trips to Italy and Germany in January and March 2010. Fifty- two students participated in the trip to Italy focused on the dairy industry and other agriculturally related industries through Tuscany, Reggio-Emilia and Lazio. Sixty-two students participated in the trip to Germany to study biogas energy production, European support systems for energy, agriculture and dairy production, and culture.

2009. Coached and advised 23 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by SUNY Cobleskill and held in Glens Falls, NY. Mixed team competitions.

2009. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Betsey Howland, Libby Gaige, Chris Blauch, and Clayton Wood. The team placed in the Platinum category among 32 teams that competed at Syracuse, NY.

2009. Organized and directed a study tour of agricultural production in the Central Valley of California. 53 students. Focused on dairy farms, cotton, feedlots, carrots, citrus, cheese and butter production and water management.

2008. Coached and advised 22 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by Pennsylvania State University and held in Harrrisburg, PA. Mixed team competitions.

2007-2008. Organized two sequential Cornell Dairy Club trips to Spain and Southern Italy in January 2008. Fifty-two students participated in the trip to Spain focused on the dairy industry and other agriculturally related industries from Madrid to Barcelona. Fifty-two students participated in the trip to Sicily and Rome where they studied the dairy industry, wine, grapes, olive oil production and traditional cheese production.

2008. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Dustin Bliss, Jordan Creek, Blake Lutz and Marcus Richards. The team placed in the Gold category (second place) among 32 teams that competed at Madison, WI.

2007-2009. Selected Co-Chair of the National Intercollegiate Dairy Challenge for 2009 to be held in Syracuse, NY.

2007. Coached and advised 20 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by University of New Hampshire and held in Concord, NH. Mixed team competitions.

2007. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Kyle Getty, William Leone, Emily Myers and Zachary Waite. The team placed in the Platinum category among 31 teams that competed at Sioux Falls, SD.

2006. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Griffin Moag, Robert DiCarlo, Matthew Hanehan and Travis Allen. The team placed in the Platinum category among 30 teams that competed at Twin Falls, ID.

2006. Co-Chair Northeast Regional Intercollegiate Dairy Challenge: Host school and co-chair responsible for contest management and coordination for 15 regional colleges and 120 students. Held in Waterloo, NY.

2006. Coached and advised 19 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by Cornell University and held in Waterloo, NY. Mixed team competitions.

2006. Developed the itinerary, arranged all of the travel, lodging and activities for 96 members of the Cornell Dairy Science Club’s study trip to Northern Italy in January. Study trip to learn production systems for Grana Padano, Parmigiano, Pecorino, and other famous cheeses, wine, buffalo and sheep dairy production, prosciutto, quota’s and DOP characteristics and rules.

2005. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Kirsty Smith, Andrew Durow, Matthew Alvernaz, Nicole Olynk. The team placed in the Platinum category (First place) among 30 teams that competed at State College, PA.

2005. Coached and advised 19 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by the SUNY Morrisville. Mixed team competition.

2004-2005. Member of the Steering Committee charged with organizing the Northeast Intercollegiate Dairy Challenge. The committee meets at least four times per year. Worked on Technology Committee, Fundraising, Farm Selection Committee.

2004. Coached and advised four senior Animal Science students at the National Intercollegiate Dairy Challenge Contest in April: Bret Bossard, Darin Hill, Kendra Inman, and Kristin Quesnel. The team placed in the Platinum category (highest) among 30 teams that competed at State College, PA.

2004. Coached and advised 19 senior Animal Science students at the Northeast Intercollegiate Dairy Challenge Contest in October. Hosted by the University of Vermont. Mixed team competitions.

2003-2004. Developed the itinerary, arranged all of the travel, lodging and activities for 52 members of the Cornell Dairy Science Club’s trip to Southern England in January, 2004. The group visited many cities and regions in England (Bath, Exeter, Dover, London, Dorset, Devon, Cornwall, the Eden Project, Stonehenge, etc.) and met with industry leaders and professionals to learn about their dairy industry, BSE, foot and mouth disease, quotas and European Union issues affecting trade and profitability.

RESEARCH RESPONSIBILITIES

GRANT SUPPORT Active Grants/Contracts/Gifts

From 1998 to current, over $14,000,000 in money and indirect support from industry. Work conducted with these monies include developing nutrient requirements for growing dairy cattle and elucidating mechanisms of mammary development in growing heifers. Further this includes improved understanding of nitrogen metabolism in growing and lactating dairy cattle and improved amino acid balancing in lactating dairy cattle. Additionally, much work has been conducted to improve the functionality and precision of the Cornell Net Carbohydrate and Protein System model that is currently used to formulate diets for about 70% of the dairy cattle in North America.

2023. ENE23-188, Implementation of Improved Nutrient Requirement and Supply Predictions to Reduce the Environmental Impact of Dairy Production in the Northeast US. Northeast SARE Grant funded for $150,000.

2022. EDF-Cornell Atkinson Impact Grant. “Streamlining Assessment of Enteric Methane Inhibiting Drugs & Feed Additives for FDA Approval†$485,768. Co-PI’s Pearen (EDF), McFadden and Van Amburgh

2022. Dairy Management, Inc. Programming and development of the Cornell Net Carbohydrate and Protein System version 7.0. $250,000. Awarded

2021. Dairy Management, Inc. Updates and modifications to the Cornell Net Carbohydrate and Protein System versions 6.55 and 7.0 to quantify, help manage and incrementally mitigate greenhouse gas emissions from dairy cattle. $194,000. Awarded

Agriculture and Food Research Initiative (AFRI) Competitive Grants Program

PI: Abbaspourrad, Alireza, Co-PI: Mike Van Amburgh. Project title: Targeted Delivery of Dietary Supplementation in Dairy Cow with Smart High Internal Phase Emulsion (HIPE) Platform. $500,000. Awarded.

Agriculture and Food Development Authority. Ireland. Teagasc Walsh Fellowship 2020.

PI: Van Amburgh. Co-PI: Brian McCarthy, Teagasc, Moorepark, Ireland. Proposal title: The investigation of milk fat depression in dairy cattle under intensive pasture based management systems†€22,000 per year for a joint Ph.D. student. (Approximately $100,000 total). Awarded. Put on hold due to pandemic.

Current Visiting Fellows/Ph.D.students/Postdoctoral Associates

• Andrew LaPierre, Ph.D. – postdoctoral associate
• Ananda B. Portela Fontoura – postdoctoral associate shared with Joe McFadden

Past Postdoctoral Associates/Visiting Fellows/non-degree students:

• Marie Oury 1999-2000
• Massimiliano Olivieri 1998
• Francesco Vizzini 2000 – 2001
• Dr. Wilhelm Knaus, Visiting Fellow, BOKU – University of Natural Resources and Applied Life Sciences, Department of Livestock Sciences, Vienna, Austria, Summer 2002
• Dr. Federico Righi, University of Parma, Italy, Fall, 2004
• Dr. Isa Fusaro, Dip.di Sc.degli Alimenti, Università di Teramo, Italy Fall 2006
• Dr. Jinshi Zhao, China Agricultural University, Fall, Spring, 2007-2008
• Dr. Hugo Bernal-Barragan, Fulbright Fellow, Mexico, 2008-2009, (Co-Host with Dr. Blake)
• Dr. Anusorn Cherdthong, Faculty of Agriculture, Khon Kaen University, Thailand, 2009
• Dr. Zhijun Cao, Visiting Professor, China Agriculture University, 2010-2011
• Dr. Daniele Pederzani, DVM, non-degree Ph.D student, University of Parma, Parma, Italy 2011.
• Dr. Yongli Qu,College of Animal Science
• • Beatrice Tozzi, Ph.D. student, University of Pisa 2013.
• Linda Semprucci, graduate student, University of Parma 2013.
• Dr. Vera Lucia Banys, Associate Professor – UFG Universidade Federal de Goias/ Campus Jatai 2013.
• Ms. Thaiz Furtado Silva, DVM Student, UFG – Universidade Federal de Goias/ Campus Jatai 2013.
• Dr. Andreas Foskolos, postdoctoral associate 2012-2015
• Dr. Edgar Collao Sainz, visiting professor, 2012-2013
• Elena Bonfante, visiting Ph.D. student from University of Bologna 2016-2017.
• Maria Ercilda Rodriguez Prado, University of Barselona, Fall 2018.
• Mara Bertocchi, 2019
• Laura Denti, 2019
• Martina Cortese, University of Padua, Italy. 2019
• Andreas Zanotti University of Parma, Italy 2022
• Tommaso Danese, University of Parma, Italy 2022-2023
• Mikenzie Hanlon, University of Thessaly, Greece, 2022-2023
• Leandros Makridis, University of Thessaly, Greece, 2022-2023

GRADUATE FIELD MEMBERS:

• Member, Graduate Field of Animal Science

GRADUATE MAJORS:

Current:

• Alex Benoit, expected 2026

Total Completed:

• Maria Carolina Diaz, M.S. 1999

• Jeffery N. Tikofsky, M.S. 2001

• Julia Smith D.V.M., Ph.D 2002

• Juan Marini, Ph.D 2002

• Jenny Kelsey Mills, M.S. 2004

• Deborah Ross, M.S. 2004

• Matthew Meyer, Ph.D 2005

• Luis Nabte-Solis, M.S. 2007

• Erin Peterson, M.S. 2007

• Megan Hofherr, M.S. 2010

• Erin Recktenwald, Ph.D. 2010

• Emiliano Raffrenato, Ph.D. 2011

• Fernando Soberon, Ph.D. 2011

• Deborah Ross, Ph.D. 2012

• Marcelo Gutierrez, M.S. 2014

• Ryan Higgs, Ph.D. 2014

• Henning Haaren, MPS 2016

• Samuel Fessenden, Ph.D. 2016

• Alessandro Zontini, Ph.D. 2016

• Kaitlin Andrews, M.S. 2016

• Rodrigo Molano, Ph.D. 2020

• Michael Dineen, Ph.D. 2020

• P. Andrew LaPierre, Ph.D. 2021

• Ananda Barbara Fontoura, Ph.D. 2022

•Andres Ortega, Ph.D. 2023

GRADUATE MINORS:

Current:

• Antonio Carlos Ramos dos Santos, Ph.D. Animal Science
• Tate Nelson, Ph.D. Animal Science
• Jorge Armando Barrientos Blanco, Ph.D. Animal Science
• Trent Westhoff, Ph.D. Animal Science
• Maria Rebeca Villobos, M.S. Animal Science
• Gutierrez Oviedo, Fabian, Ph.D, Animal Science, Nutrition
• You, Charlie, Ph.D., Animal Science, Nutrition
• Ferro, Liza, Ph.D. Animal Science

Total Completed:

• Rogerio de Paula Lana, Ph.D. 1997
• Miriam Louise Kelly, M.S. 1998
• Rodrigo Ruiz, Ph.D. 2001
• Pablo Jose Guiroy, Ph.D. 2001
• Denis Osman Molina Benitez, Ph.D. 2002
• Joseph Eisele, M.P.S. 2002
• Claudia Coen, Ph.D. 2002
• Michael Baker, Ph.D. 2003
• Benjamin Corl, Ph.D. 2003
• Robert Rhoads, Ph.D. 2003
• Kathleen Ogborn, M.P.S. 2005
• Tricia Stewart, M.S. (Education) 2005
• Cristina Lanzas, Ph.D. 2006
• Seong Wong Seo, Ph.D. 2006
• Fernando Soberon, M.S. 2007
• Manolo Ramos-Nieves, M. S. 2007
• Omar Cristobal, M.S. 2009
• Ryan Higgs, M.S. 2009
• Kimberly Morrill, M.S. Animal Science (University of New Hampshire – external committee member) 2009
• Laurie Winkleman, Ph.D. 2011
• Manolo Ramos-Nieves, Ph.D. Animal Science, 2013
• Victor Absalon-Medina, Ph.D. Animal Science, 2013
• Crystal Davenport, M.S. Nutritional Sciences, 2013
• Maris Mayumi McCarthy, Ph.D., Animal Science, 2015
• Carla Foditsch, M.S. Animal Science, 2015
• Luciana S Caixeta, Ph.D. Animal Science 2016
• Christopher Krumm, Ph.D., Animal Science 2016
• Benjamin Donald Scott, M.S., Animal Science 2016
• Larissa Vieira Di Marzo, M.S. Food Science 2017
• Andre Gustavo Vieira Teixera, Ph.D. Animal Science, 2018
• Sarah Elizabeth LaCount, Ph.D. Animal Science, 2019
• Leonardo Bringhenti, PhD. Animal Science, 2019
• Allison Kerwin, Ph.D. Animal Science, 2021
• Matilde Portnoy, Ph.D. Food Science, 2023

External Examiner:

• Alexandra Sly, Ph.D. University of Pretoria, South Africa. 2019
• John Doelman, Ph.D. University of Guelph – External Examiner, 2011

Undergraduate Honors students:

• Alexandria Benoit, 2020
• Julia Fouts, 2020
• Courtney Hoff, 2018
• Haowen Hu, 2018
• Andres Ortega, 2017
• Paul Andrew Lapierre, 2014
• Daniel Lopez, 2012
• Kristen Russomanno, 2012 (Biology and Society major)
• Jason McNamara II, 2011
• Samuel Fessenden, 2011
• Scott Brown, 2011
• Chad Wall, 2010
• Jenny Mills, 2001
• Amy Bork, 1999
• Monica Foote, 1999
• Jacob Voorhees, 1999
• Sarah Wilson, 1998

OTHER CURRENT PROFESSIONAL ACTIVITIES

PROFESSIONAL SOCIETIES:

• American Dairy Science Association

• American Society of Animal Science

PROFESSIONAL HONORARIES:

• National Dairy Shrine

EDITORIAL BOARDS:

• Ad-hoc reviewer Journal of Dairy Science
• Ad hoc reviewer for the Journal of Animal Science
• Ad hoc reviewer for Animal Feed Science and Technology
• Ad hoc reviewer for Journal of Nutrition
• Ad-hoc reviewer for Livestock Science
• Ad-hoc reviewer for Animals
• Ad-hock reviewer for Animal
• Ad-hock reviewer for Journal of Endocrinology
• Ad-hock reviewer for Professional Animal Scientist
• Ad-hock reviewer for Grass and Forage Science
• Ad-hock reviewer for Animal Production Science
• Ad-hock reviewer for PlosOne
• Ad-hock reviewer for Biotechnology and Bioengenering
• Ad-hock reviewer for Lipids
• Ad-hock reviewer for Agronomy
• Ad-hock reviewer for Applied Animal Science (formerly Professional Animal Science)
• Ad-hock reviewer for Amino Acids
• Ad-hock reviewer for Journal of Mechanical Behavior of Biomedical Materials
• Ad-hock reviewer for Veterinary Medicine and Science
• Ad-hock reviewer for Journal of Agriculture and Food Chemistry

COMMITTEE ASSIGNMENTS:

International/National:

2003 – 2011 Member of Feed Analyses Consortium (disbanded 2011)

2008 Member NC 1042 Regional Committee

2001- 2007 Member NC-119/1119 Regional Committee

American Dairy Science Association/American Society of Animal Science:

1998 – 2001 Member of the Graduate Student Paper Competition Committee (Chairperson, 2001)

1998-2001 Member of R. M. Hoyt Scholarship Selection Committee

2001-2005 Member of Growth and Development Committee (Chair ADSA 2004)

2004- 2007 Foundation Scholar Award Committee, ADSA

2005- 2006 American Dairy Science Association/American Society for Animal Science Northeast Regional Secretary

2006- 2007 American Dairy Science Association/American Society for Animal Science Northeast Regional Vice President

2007- 2008 American Dairy Science Association/American Society for Animal Science Northeast Regional President

2008 American Dairy Science Association, Strategic Planning Committee

2009 – 2012 American Dairy Science Association, member Lactation Committee

Chair 2011-2012 (organized the Lactation symposium on neonatal programming for the ADSA meeting 2012 entitled “The Long-Term Impact of Epigenetics and Maternal Influence on the Neonate through Milk-Borne Factors and Nutrient Status†with Harald Hammon, F. Skip Bartol, Katie Hinde, Paul Kenyon and Fernando Soberon.

2009-2010 Member organizing committee, American Dairy Science Association, 19th Discover Conference on Food Animal Agriculture “Key Issues in Sustainability of the Dairy Industry,â€.

2010-2011 Member organizing committee, American Dairy Science Association, “22nd ADSA DISCOVER Conference, “Milk Components: Opportunities for Maximizing Farm Gate Returns and Meeting Manufacturing Needsâ€.

2011 -2013 ADSA-AFIA awards committee member

2011- 2023 ADSA – Land O’Lakes Teaching and Advising Award – committee member

2011-2014, 2019-2020 Member of the ADSA/ASAS Growth and Development Committee

2012-2013 Member organizing committee, American Dairy Science Association, “25th ADSA DISCOVER Conference, “Impact of nutrition and management on the calf and future performance and immune functionâ€.

State/Local:

2008– 2011 New York Dairy Task Force, Nutrient Management Committee, NY Farm Viability Institute

2005 Member Alfred State College Farm Task Force. Assigned by the President to act as an external reviewer with five other industry representatives to determine the future of the Alfred dairy facility and teaching program.

2004 Chairperson of Alfred State College Agriculture Curriculum evaluation committee

University:

2020- current Cornell University Research Integrity Committee, Co-Chair

2019-2020 Cornell Academic Integrity Review Committee, Chair

2002 – 2011 Animal Science Representative to University Faculty Senate

2011 – 2012 Member CARE Director Search committee (Chaired by Cathy Long)

College:

2000 Faculty search committee for Agricultural Education position

2003-present Tenure review committees.

2005 Tenure review committee (three reviews) served as chairperson for one committee.

2004-2005 Chairperson, Search committee in Animal Science, Ruminant Nutrition and Modeling –Interviewed nine candidates over two separate searches. Search resulted in the hiring of Pekka Huhtanen.

2006- 2013 Member of CALS curriculum committee

2009 Search committee for CALS Registrar

2009- 2010 Member Animal Science search committee – Physiology position

2010 External member search committee for CALS Director of Admissions position

2010Member Animal Science search committee – Dairy Management Position

2015 Member of joint College of Veterinary Medicine and CALS/Animal Science search committee for Sr. Lecture

2015-2016 Member Animal Science search committee – Dairy Modeling and Extension position

2015-2016 Member Animal Science search committee – Dairy Metabolism position

2017-2018 Member of Animal Science search committee- Modeling position

2017 Ad hoc committee for Tenure and Promotion, CVM 2018 Ad-hoc committee for Tenure and Promotion, CVM 2019 Ad-hoc committee for Tenure and Promotion, CVM 2020 Ad-hoc committee for Tenure and Promotion, CVM

2021- Ad-hoc committee for Tenure and Promotion, Food Science

2021- current, Chair of Search Committee for the Everett Endowed faculty position in Animal Science

Department:

2002 – 2003 Centennial Celebration Committee

2001 – 2006 Member of social committee

2001 – 2008 LARTU research review committe

1998 – present Curriculum Committee – Animal Science,

2006 to 2013 Chair of Committee and Director of Undergraduate Studies

1998 -1999 Website Committee – Animal Science

1996 – present Cornell Nutrition Conference Program Committee. (Program Chair 2000, 2010).

2005 – 2010 Member of exploratory and development committee for new dairy construction at the Teaching and Research Farm

2010 – present T&R and LARTU research review committee

2012-present Chair of CURC operations committee

2015- current Chair of several search committees. (Department chair, Everett Chair, NEAFA Chair)

2015- current Committee member of several search committees

OTHER CURRENT PROFESSIONAL CONTRIBUTIONS

2009 – 2010 – Worked with University of Parma, Italy and College of Agriculture and Life Sciences to develop a reciprocal agreement for student exchange that will be initiated in Spring Semester 2011. Four CALS students attended the University of Parma in the first year. The program is continuing to attract students.

2008 – Helped establish an internship program with a world class cheese, wine and olive oil producer in Tuscany for Cornell students interested in cheese production and vertical integration (http://www.parrina.it/). Students that have participated to date (Kyle Getty, Matt Kyle, Sarah-Jean Griffen, Kendra Murray, Elizabeth Fullerton, Anna Laggis, Anika Zuber, Kristen Torgerson, Erik Jorgensen, Jennifer King, Kristin Gallagher, Ellie Ainslie, Isabelle Leonard).

2007 – 2008 – Helped develop a reciprocal agreement with University of Barcelona for exchange students and also with the Institut de Recerca i Tecnologia Agroalimentaries (IRTA) in Barcelona, Spain to allow our Dairy Fellows students to intern at a large dairy facility outside of Barcelona (Libby Gaige was the first student to participate in the exchange during Summer 2008).

2006 – 2014 – National Intercollegiate Dairy Challenge Board of Directors Member (NAIDC http://www.dairychallenge.org/

http://www.dairychallenge.org/library/news/Hoards-April2011- DairyChallenge10thAnniversary.pdf ). ). Responsible for further development of national and regional dairy management teaching and evaluation activities.

2007– 2009 National Contest Co-Chairperson

2011 – 2012 Vice Chair Board of Directors

2012 – 2014 Chair of Board of Directors

2010 – present member of Program Committee

2005 – 2011 Member of the development team for CPM Dairy nutrition Program (Cornell University. University of Pennsylvania School of Veterinary Medicine, and Miner Inst., Chazy NY). In 2010 the leadership and direction of the model reverted back to University of Pennsylvania and Cornell has no direct relationship with the future direction of the program.

1996 to present – Member of the development team for the Cornell Net Carbohydrate and Protein System a nutrition model that is a licensed invention with Cornell and is used around the world to formulate diets for lactating and growing cattle. Currently sever as leader of the model development group.

2004-2005 – Chaired the organizing committee for the NRAES (Natural Resource, Agriculture, and Engineering Service) conference: Dairy Calves and Heifers: Integrating Biology and Management. Held in Syracuse, January 25-27. ~300 participants from the U.S. and foreign countries. Academics, dairy producers, calf and heifer raisers, nutritionists. NRAES Publication -175

2003- current – Member of the Northeast Dairy Challenge Contest organizing committee.

2005 – present Program committee (Chair 2006, 2015, 2016)

2005 Farm selection committee

2003 – 2004 Technical committee

SPEAKING ENGAGEMENTS & MEDIA

RECENT INVITED PRESENTATIONS

Van Amburgh, M. E. 2018: Invited Review: Modifications to the Cornell Net Carbohydrate and Protein System related to environmental issues—Capability to evaluate nitrogen and phosphorus excretion and enteric carbon dioxide and methane emissions at the animal level. ARPAS Symposium, American Dairy Science Association, Sustainability, and Integrated Systems. Knoxville, TN.

Van Amburgh, M. E. 2018 Invited Review: Integration of post-weaning nutrient requirements and supply with composition of growth and mammary development in modern dairy heifers. Growth and Development Symposium. American Dairy Science Association. Knoxville, TN.

Van Amburgh, M. E. 2018: Environmental Sustainability, Food Security and Animal Food Production: Milk and Dairy as a Case Study as part of the Sustainable Dairy Systems 2018 3rd Annual Cornell Dairy Center of Excellence Symposium presented in partnership with The David R. Atkinson Center for a Sustainable Future. Cornell University.

Van Amburgh, M.E. 2015. Innovation through Interconnection: maximizing feedback impact – with David Barbano and Marina von Keyserlingk. Cornell Food Systems Global Summit. Implications of Taking a Systems Approach. Cornell Institute for Food Systems. Dept. of Food Science.

Van Amburgh, M.E. 2015. Updates to the CNCPS to Improve the Ability to Balance for all Essential Amino Acids. 29th ADSA Discover Conference on Amino Acid Requirements. Eaglewood Resort & Spa, Itasca, IL

Van Amburgh, M.E. and F. Soberon. 2013. Early life nutrition and long-term productivity in calves. 25th ADSA Discover Conf: New Developments in Immunity, Nutrition, and Management of the Pre-ruminant Calf. Eaglewood Resort & Spa, Itasca, IL

Van Amburgh, M.E. Cow Longevity Conference. 2013. Tumba, Sweden. Delaval International Research Program. Early life management and productivity of dairy calves.

Van Amburgh, M. E., H. Hammon, and Soberon, F. 2013. The role of colostrum components on neonatal development and growth with emphasis on the calf. ADSA Multidisciplinary and International Leadership Keynote. Colostrum Quality, Analytical Methods, and Processing Challenges. J. Dairy Sci. 96: E suppl. 1:405.

Van Amburgh, M.E., 2012. “Revising Energy Requirements of Calves and Heifersâ€. 2012 FASS Ruminant Nutrition Symposium. Phoenix, AZ. Abstr. 862.

Soberon, F., and M. E. Van Amburgh. 2012. “From Calf to Dairy Cow: Early Life Management and Long-Term Productivityâ€. 2012 FASS Lactation Symposium “The Long-Term Impact of Epigenetics and Maternal Influence on the Neonate through Milk-Borne Factors and Nutrient Statusâ€. Abstr. 746.

Van Amburgh, M. E. 2011. Are there limits to milk fat and protein production: What can we learn from other countries? ADSA Discover Conference 22, Milk Components: Opportunities for Maximizing Farm Gate Returns and Meeting Manufacturing Needs. Itasca, IL.

Van Amburgh, M. E. R. J. Higgs, L. E. Chase. 2011. Milk protein: Formulating for low protein diets. ADSA Discover Conference 22, Milk Components: Opportunities for Maximizing Farm Gate Returns and Meeting Manufacturing Needs. Itasca, IL.

Van Amburgh, M. E., F. Soberon, E. Raffrenato, J. Karzses, and R. W. Everett. 2011. Taking the Long View: Treat Them Nice as Babies and They will be Better Adults. AABP Annual Meeting, St. Louis, MO.

Van Amburgh, M. E. 2011. Application of the CNCPS under Indian feeding and management conditions. Scientific advisory meeting. Godrej Agrovet. Bangalore, India

Van Amburgh, M. E. and E. B. Recktenwald. 2011. Advances in nitrogen metabolism and utilization in dairy cattle. 2nd International Symposium on Dairy Cow Nutrition and Milk Quality. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing.

Van Amburgh, M. E. 2011. Formulating and management of rations for dairy cattle. 2nd International Symposium on Dairy Cow Nutrition and Milk Quality. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing.

Van Amburgh, M. E. 2010. American Dairy Science Association, ARPAS-Ruminant Nutrition Symposium “Nitrogen Recycling: Capturing the Implications in RDP Requirements and Energy Utilizationâ€. American Dairy Science Association Annual Meeting, Denver, CO.

Van Amburgh, M.E. 2010. Adapting the CNCPS as a platform for nutrient requirements in the Chinese Dairy Industry. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing.

Van Amburgh, M.E. 2010. Improving the efficiency of milk production in China; foundations for ration formulation and implementation in the Chinese Dairy Industry. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing

Van Amburgh, M. E., L. Chase, Q. Ketterings, K. Czymmek, C. Gooch, and T. R Overton. 2010. The Efficiency of Use of Nitrogen and Phosphorus in Lactating Dairy Cattle with Whole Farm Implications. 19th ADSA Discover Conference on Food Animal Agriculture: Key Issues in Sustainability of the Dairy Industry. American Dairy Science Association, Nashville, IN

Van Amburgh, M.E. 2009. Early life calf management and nutrition: impacts on lifetime productivity. First International Symposium on Dairy Cow Nutrition and Milk Quality. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing

Van Amburgh, M. E. 2008. Current State of Nutrient Requirements for Growth, Development of the Digestive System and Immune Function. ADSA Discover Conference 15 on Biology of the Calf. American Dairy Science Association, Roanoke, VA

Van Amburgh, M. E. 2008. Feed and Forage Analyses: Issues in characterizing inputs needed for CNCPS/CPM Dairy and NRC Models. The NIRSC, FeedAC, and National Forage Testing Association Joint Conference. Indianapolis, IN

Van Amburgh, M. E. 2008. Effect of Early Life Nutrient Intake on Long-Term Productivity of Calves. Southwest Nutrition Conf. Phoenix, AZ.

Van Amburgh, M. E. 2007. Improving the efficiency of use of nitrogen in lactating dairy cattle: revisiting the CNCPS approach. Cornell Nutrition Conference Degussa Pre-conference Symposium. Syracuse, NY

E. E. Connor, M. J. Meyer, R. W. Li, M. E. Van Amburgh, Y. R. Boisclair, and A. V. Capuco. 2006. Regulation of gene expression in the bovine mammary gland by ovarian steroids. American Dairy Science Assoc. Annual Meeting.

Van Amburgh., M.E. 2005. A fair but critical review of the National Research Council nutrient recommendations for calf and heifer growth. American Dairy Science Association Ann. Meeting, Cincinnati, OH.

Van Amburgh, M. E. and M. J. Meyers. 2005. Mammary development and milk yield potential. Professional Heifer Growers Association National Meeting. Sioux Falls, SD.

Van Amburgh., M.E. 2004. University of Nottingham, Easter School. Rearing the Modern Dairy Heifer, International Conference. Speaker. 200 dairy professionals, academics, students, producers. Nottingham, England.

Van Amburgh, M.E. 2004. Starting from birth: Developing a more systematic approach to calf nutrition and management. American Dairy Science Association Foundation Scholar Lecture. St. Louis, MO

Van Amburgh, M. E. 2004. August 29 – September 4. Urea Transporters and Nitrogen Recycling in Ruminants. International Ruminant Physiology Meeting. Copenhagen, Denmark. 250 participants, primarily academics and researchers. Speaker.

RESEARCH AND EXTENSION GRANT REVIEW PANELS

1996 – present Reviewer for Hatch Grants. College of Agriculture and Life Sciences, Cornell University

2000 – 2001 Reviewer for the National Academy of Sciences Board on Agriculture, Nutrient Requirements of Dairy Cattle, 7th Edition.

1997 – 2005 Reviewer for USDA National Research Initiative Grants

2003 – 2008 Reviewer for Bard Grants

2004 – 2005 Reviewer for National Institutes of Health Grants Program

2008 – 2010 The United States – Israel Bi-National Agricultural Research and Development Fund Research Proposal Review Panel Member

CONSULTING

2009 – 2013 Elanco Animal Health, Dairy Advisory Board member

2001 – 2010 Land O’ Lakes Animal Milk Division – product development related to nutrient requirements and metabolism of calves

1999 – 2022 Milk Specialties Global, Carpentersville, Ill. Scientific Advisory Committee member.

1996 – 1997 Scientific review committee – somatotropin and growth of dairy replacement heifers. Monsanto Inc., St. Louis, MO.

2018 – 2020 Kemin Industries, Des Moines, IA. Advisory committee – ruminant products

RESOURCE FOR MEDIA

Written articles and answered questions for Northeast Dairy

Business Magazine, Hoards Dairyman Magazine, Feedstuffs, Dairy Herd Management magazine, Dairy Today magazine, Progressive Dairymen magazine, Slate, National Public Radio, CNN, NY Times, and many other media outlets.

RESEARCH PUBLICATIONS

Ortega, A., H. Zhao, and M. E. Van Amburgh. 2023. Development and Validation of a Method for Hydrolysis and Analysis of Amino Acids in Ruminant Feeds, Tissue, and Milk Using Isotope Dilution Z-HILIC Coupled with Electrospray Ionization Triple Quadrupole LC-MS/MS. J. Agri. Food Chem. 72:833-844.

Martineau, R., D.R. Ouellet, D. Pellerin, J.L. Firkins, M.D. Hanigan, R.R. White, P.A. LaPierre, M.E. Van Amburgh, H. Lapierre. 2023. Ability of three dairy feed evaluation systems to predict postruminal outflows of nitrogenous compounds in dairy cows: A meta-analysis. J. Dairy Sci. 106:8583-8610.

Ortega, A. and M. E. Van Amburgh. 2023 Determination of 27 bovine plasma amino acids and metabolites using zwitterionic-hydrophilic interaction liquid chromatography coupled with isotope dilution electrospray ionization triple quadrupole liquid chromatography-mass spectrometry and the effect of deproteinization timing. J. Dairy Sci. Comm. 5:118-123.

Marumo, J. L., P. A. LaPierre, and M.E. Van Amburgh. 2023. Enteric Methane Emissions Prediction in Dairy Cattle and Effects of Monensin on Methane Emissions: A Meta-Analysis. Animals 13:8 1392.

Fontoura A.B.P., V. Sáinz de la Maza-Escolà, A.T. Richards, B.N. Tate, M.E. Van Amburgh, E. Grilli, J.W. McFadden. 2023. Effects of dietary organic acid and pure botanical supplementation on growth performance and circulating measures of metabolic health in Holstein calves challenged by heat stress. J. Dairy Sci. 106:2904-2918.

Higgs, R. J., L.E. Chase, C.G. Schwab, B. Sloan, D. Luchini, P.A. LaPierre, and M. E. Van Amburgh. 2023. Balancing dairy cattle diets for rumen nitrogen and methionine or all essential amino acids relative to metabolizable energy. J. Dairy Science 106:1826-1836

Chandler, T.L., T.A. Westhoff, T.R. Overton, A.L. Lock, M.E. Van Amburgh, A.S. Sipka, and S. Mann. 2022. Lipopolysaccharide challenge following intravenous amino acid infusion in postpartum dairy cows: I. Production, metabolic, and hormonal responses. J. Dairy Sci. 105:4593-4610.

M. Gutierrez-Botero, D. A. Ross, and M. E. Van Amburgh. 2022. Formulating diets for intestinal unavailable nitrogen using blood meal in high-producing dairy cattle. J. Dairy Sci. (in press) https://doi.org/10.3168/jds.2021-21730

T.L.Chandler, T.A.Westhoff, T.R.Overton, A.L.Lock, M.E.Van Amburgh, A.S.Sipka, and S.Mann. 2022 Lipopolysaccharide challenge following intravenous amino acid infusion in postpartum dairy cows: I. Production, metabolic, and hormonal responses. J. Dairy Sci. 105:4593-4610.

M.Dineen, B.McCarthy, P.Dillon, F.Coughlan, N.Galvin, M.E.Van Amburgh. 2021. The effect of concentrate supplement type on milk production, nutrient intake, and total-tract nutrient digestion in mid-lactation, spring- calving dairy cows grazing perennial ryegrass (Lolium perenne L.) pasture. 104:11593-11608.

Mateus Z. Toledo, Matias L. Stangaferro, Rodrigo S. Gennari, Rafael V. Barletta, Martin M. Perez, Robert Wijma, Emily M. Sitko, German Granados, Magdalena Masello, Michael E. Van Amburgh, Daniel Luchini, Julio O. Giordano, Randy D. Shaver, and Milo C. Wiltbank. 2021 Effects of feeding rumen-protected methionine pre- and postpartum on reproductive outcomes of multiparous Holstein cows. J. Dairy Sci. 104:11210-11225.

Mateus Z. Toledo, Matias L. Stangaferro, Rodrigo S. Gennari, Rafael V. Barletta, Martin M. Perez, Robert Wijma, Emily M. Sitko, German Granados, Magdalena Masello, Michael E. Van Amburgh, Daniel Luchini, Julio O. Giordano, Randy D. Shaver, and Milo C. Wiltbank. 2021 Effects of feeding rumen-protected methionine pre- and postpartum in multiparous Holstein cows: Lactation performance and plasma amino acid concentrations. J. Dairy Sci. 104:7583-7603.

M. Dineen, B. McCarthy, D. Ross, A. Ortega, P. Dillon, and M.E. Van Amburgh. 2021 Characterization of the nutritive value of perennial ryegrass (Lolium perenne L.) dominated pastures using updated chemical methods with application for the Cornell Net Carbohydrate and Protein System. Anim. Feed Sci. Tech. 272:114752

M. Dineen, B. McCarthy, D. Ross, A. Ortega, P. Dillon, and M.E. Van Amburgh. 2021 Microbial composition and omasal flows of bacterial, protozoal, and nonmicrobial amino acids in lactating dairy cows fed fresh perennial ryegrass (Lolium perenne L.) not supplemented or supplemented with rolled barley. J. Dairy Sci. 104:4192-4205.

J. Stamey Lanier, F. K. McKeith, N. A. Janovick, R. A. Molano, M. E. Van Amburgh, and J. K. Drackley. 2021. Influence of starter crude protein content on growth and body composition of dairy calves in an enhanced early nutrition program. J. Dairy Sci. 104:3082-3097.

Molano, R. A., C.L. Girard, and M.E. Van Amburgh. 2021. Effect of dietary supplementation of 2 forms of a B vitamin and choline blend on the performance of Holstein calves during the transition and postweaning phase. J. Dairy Sci. 104:10812-10827.

M.Aguilar, M. Van Amburgh, W.A.D.Nayananjalie, and M.D.Hanigan. 2021. Milk urea nitrogen variation explained by differences in urea transport into the gastrointestinal tract in lactating dairy cows. J. Dairy Sci. 104:6715-6726.

M. Dineen, B. McCarthy, P. Dillon, P. A. LaPierre, S. Fessenden, C. Matthews, N. Galvin, M. E. Van Amburgh. 2020. Rumen metabolism, omasal flow of nutrients, and microbial dynamics in lactating dairy cows fed fresh perennial ryegrass (Lolium perenne L.) not supplemented or supplemented with rolled barley grain. J. Dairy Sci. 103:11332–11348

Molano, Rodrigo A., Akira Saito, Daniel N. Luchini, and Michael E. Van Amburgh. 2020. Effects of rumen- protected methionine or methionine analogs in starter on plasma metabolites, growth, and efficiency of Holstein calves from 14 to 91 d of age. J. Dairy Sci. 103:10136–10151.

Fessenden, S. W., D. A. Ross, E. Block, and M. E. Van Amburgh, 2020. Comparison of milk production, intake, and total-tract nutrient digestion in lactating dairy cattle fed diets containing either wheat middlings and urea, commercial fermentation by-product, or rumen-protected soybean meal. J. Dairy Sci. 103:5090-5101.

K. S. Hare, L. N. Leal, J. M. Romao, G. J. Hooiveld, F. Soberon, H. Berends, M. E. Van Amburgh, J. Martín- Tereso, and M. A. Steele. 2019. Preweaning nutrient supply alters mammary gland transcriptome expression relating to morphology, lipid accumulation, DNA synthesis, and RNA expression in Holstein heifer calves. J. Dairy Sci. 102:2618–2630

S.W. Fessenden, A. Foskolos, T. J. Hackmann, D.A. Ross, E. Block, and M.E. Van Amburgh. 2019. Rumen digestion kinetics, microbial yield, and omasal flows of nonmicrobial, bacterial, and protozoal amino acids in lactating dairy cattle fed fermentation by-products or urea as a soluble nitrogen source. J. Dairy Sci. 102:3036- 3052.

S.W. Fessenden, A. Foskolos, T. J. Hackmann, D.A. Ross, E. Block, and M.E. Van Amburgh. 2019. Effects of a commercial fermentation byproduct or urea on milk production, rumen metabolism, and omasal flow of nutrients in lactating dairy cattle. J. Dairy Sci. 102:3023-3035.

Lyons, S.E., Q.M. Ketterings, G.S. Goodwin, D.J. Cherney, J.H. Cherney, M.E. Van Amburgh, J.J. Meisinger, and T. F. Kilcer. 2019. Optimal harvest timing for brown midrib forage sorghum yield, nutritive value, and ration performance. J. Dairy Sci. 102:7134-7149.

Nicholson, C. F. A. R. Peixoto Simões, P. A. LaPierre,| and M. E. Van Amburgh. 2019. Modeling complex problems with systems dynamics: applications in animal agriculture. ASN-ASAS Symposium: Future of Data Analytics in Nutrition. J. Anim. Science 2019.97:1903-1920

Fessenden, S. W., D. A. Ross, E. Block, and M. E. Van Amburgh, 2019. Effects of a commercial fermentation byproduct or urea on milk production, rumen metabolism, and omasal flow of nutrients in lactating dairy cattle. J. Dairy Sci. 102:3023-3035.

Van Amburgh, M. E., K. L. Russomanno, R. A. Higgs and L. E. Chase. 2019 Invited Review: Modifications to the Cornell Net Carbohydrate and Protein System related to environmental issues—Capability to evaluate nitrogen and phosphorus excretion and enteric carbon dioxide and methane emissions at the animal level. Applied Anim. Sci. 35:101-113. Editor’s Choice

Van Amburgh, M. E., F. Soberon, M. J. Meyer, and R. A. Molano. 2019. Invited Review: Integration of post weaning nutrient requirements and supply with composition of growth and mammary development in modern dairy heifers. J. Dairy Sci. https://doi.org/10.3168/jds.2018-15270

Fessenden, S.W., T.J. Hackmann, D.A.Ross, E.Block, A.Foskolos, M. E.Van Amburgh, 2019. Rumen digestion kinetics, microbial yield, and omasal flows of nonmicrobial, bacterial, and protozoal amino acids in lactating dairy cattle fed fermentation by-products or urea as a soluble nitrogen source. J. Dairy Sci. https://doi.org/10.3168/jds.2018-15448

Raffrenato, E. C. F. Nicholson, and M. E. Van Amburgh. 2019. Development of a mathematical model to predict pool sizes and rates of digestion of 2 pools of digestible neutral detergent fiber and an undigested neutral detergent fiber fraction within various forages. J. Dairy Sci. 102:351-364.

Hare, K.S., L.N. Leal, J.M. Romao, G.J. Hooiveld, F. Soberon, H. Berends, M.E. Van Amburgh, J. Martín- Tereso, M.A. Steele, 2019. Preweaning nutrient supply alters mammary gland transcriptome expression relating to morphology, lipid accumulation, DNA synthesis, and RNA expression in Holstein heifer calves. J. Dairy Sci. 102:2618-2630.

Dineen, M., R. Higgs, B. McCarthy, M. E. Van Amburgh. 2018. Evaluation of the Cornell Net Carbohydrate and Protein System version 7.0 for pasture-based systems. Grassland Science in Europe. 23:96-98. CABI Direct.

Lapierre, H. M. Larsen, D. Sauvant, and M. E. Van Amburgh. 2018. Review: Converting nutritional knowledge into feeding practices: a case study comparing different protein feeding systems for dairy cows. Animal. 12:s457-s466. https://doi.org/10.1017/S1751731118001763

Leal, L. N., J. M. Romao, G. J. Hooiveld, F. Soberon, H. Berends, M. V. Boekshoten, M. E. Van Amburgh, J. Martin-Tereso, and M. A. Steele. 2018. Nutrient supply alters transcriptome regulation in adipose tissue of pre- weaning Holstein calves. PLoS ONE 13(8): e0201929 https://doi.org/10.1371/journal.pone.0201929

Raffrenato, E., D. A. Ross, and M. E. Van Amburgh. 2018. Development of an in vitro method to determine rumen undigested aNDFom for use in feed evaluation. J. Dairy Sci. 101:9888-9900.

Raffrenato E, Fievisohn R, Cotanch KW, Grant RJ, Chase LE, Van Amburgh ME. 2017. Effect of lignin linkages with other plant cell wall components on in vitro and in vivo neutral detergent fiber digestibility and rate of digestion of grass forages. J Dairy Sci. 100:8119-8131. doi: 10.3168/jds.2016-12364. Epub 2017 Aug 2.

Fessenden SW, Hackmann TJ, Ross DA, Foskolos A, Van Amburgh ME. 2017. Ruminal bacteria and protozoa composition, digestibility, and amino acid profile determined by multiple hydrolysis times. J Dairy Sci. 100:7211-7226. doi: 10.3168/jds.2016-12531. Epub 2017 Jun 28.

Soberon F, Van Amburgh ME. 2017. Effects of preweaning nutrient intake in the developing mammary parenchymal tissue. J Dairy Sci. Jun;100:4996-5004. doi: 10.3168/jds.2016-11826. Epub 2017 Apr 5.

Van Soest, P.J. 2016. The detergent system for analysis of foods and feeds. Cornell Print on Demand Book. ISBN: 978-1-63095-134-4. Editors: M.E. Van Amburgh, P. Uden and P. Robinson.

Higgs R.J., L.E. Chase, D.A. Ross, M.E. Van Amburgh. 2015. Updating the Cornell Net Carbohydrate and Protein System feed library and analyzing model sensitivity to feed inputs. J Dairy Sci. 98:6340-60. doi: 10.3168/jds.2015-9379.

Van Amburgh M.E., Collao-Saenz EA, Higgs RJ, Ross DA, Recktenwald E. B., Raffrenato E, Chase L E, Overton TR, Mills JK, Foskolos A.2015. The Cornell Net Carbohydrate and Protein System: Updates to the model and evaluation of version 6.5.J Dairy Sci.98:6361-80. doi: 10.3168/jds.2015-93 78. (Editors Choice)

Recktenwald, E.B., D. A. Ross, S.W. Fessenden, C. J. Wall, and M.E. Van Amburgh. 2014. Urea-N recycling in lactating dairy cows fed diets with 2 different levels of dietary crude protein and starch with or without Rumensin. J. Dairy Sci. 97:1611-1622.

Higgs RJ, A.J., Sheahan, K. Mandok, M. E. Van Amburgh , and J. R. Roche. 2013. The effect of starch-, fiber-, or sugar-based supplements on nitrogen utilization in grazing dairy cows. J Dairy Sci.96:3857-66. doi: 10.3168/jds.2012-6117.

Soberon, F. and M. E. Van Amburgh. 2013. Lactation Biology Symposium: The effect of nutrient intake from milk or milk replacer of preweaned dairy calves on lactation milk yield as adults: a meta-analysis of current data. J Anim. Sci. 91:706-12. doi: 10.2527/jas.2012-5834.

Soberon, F. and M. E. Van Amburgh. 2012. The effect of nutrient intake from milk or milk replacer of pre- weaned dairy calves on lactation milk yield as adults: a meta-analysis of current data. J. Anim. Sci.(doi:10.2527/jas.2012-5834)

Ollivett, T. L., D. V. Nydam, T. C. Linden, D.D. Bowman, and M. E. Van Amburgh. 2012. Effect of nutritional plane on health and performance in dairy calves after experimental infection with Cryptosporidium parvum. J. Amer. Vet. Med. Assoc. 241:1514-1520.

Higgs, R. J., L. E. Chase, and M. E. Van Amburgh. 2012. Application and evaluation of the Cornell Net Carbohydrate and Protein System as a tool to improve nitrogen utilization in commercial dairy herds. Prof. Animal Sci. 29:370-378.

Higgs, R. J., L. E. Chase and M. E. Van Amburgh. 2012. Development and evaluation of equations in the Cornell Net Carbohydrate and Protein System to predict nitrogen excretion in lactating dairy cows. J. Dairy Sci. 95:2004-2014.

Soberon, F., E. Raffrenato, R.W. Everett, and M. E. Van Amburgh. 2012. Pre-weaning milk replacer intake and effects on long-term productivity of dairy calves. J. Dairy Sci. 95:783-93

Raffrenato, E. and M. E. Van Amburgh. 2011. Technical Note: Improved methodology for analyses of acid detergent fiber and acid detergent lignin. J. Dairy Science. 94:3613-3617.

Swink, S.N., Q. M. Ketterings, L. E. Chase, K. J. Czymmek, and M. E. Van Amburgh. 2011. Nitrogen balances for New York State: Implications for manure and fertilizer management. J. Soil and Water Conservation. 66:1-17.

Mills, J. K., D. A. Ross and M. E. Van Amburgh. 2010. The effects of feeding medium chain triglycerides on the growth, insulin responsiveness and body composition of Holstein calves from birth to 85 kg bodyweight. J. Dairy Sci. 93:4262-4273.

Soberon, F., J. Lukas, M. Van Amburgh, A. Capuco, D. Galton, T. Overton. 2010. Effects of increased milking frequency on metabolism and mammary cell proliferation in Holstein dairy cows. J. Dairy Sci. 93:565- 573.

Morrill , K. M. S. P. Marston , N. L. Whitehouse, M. E. Van Amburgh, C. G. Schwab, D. M. Haines, and P. S. Erickson. 2010. Anionic salts in the pre-partum diet and addition of sodium bicarbonate to colostrum replacer, and their effects on immunoglobulin G absorption in the neonate. J. Dairy Sci. 93:2067–2075.

Daniels, K. M., M. L. McGilliard, M. J. Meyer, M. E. Van Amburgh, A. V. Capuco and R. M. Akers. 2009. Effects of body weight and nutrition on histological mammary development in Holstein heifers. J Dairy Sci. 92:499-505.

Raffrenato, E., M.E. Van Amburgh, and P.J. Van Soest. 2009. Effect of lignin type on extent and rate of neutral detergent fibre digestion and potential energy yield. S. African J. Anim. Sci. 39: 153-156.

Thorn, Stephanie R., Stig Purup, Mogens Vestergaard, Kris Sejrsen, Matthew J Meyer, Michael E Van Amburgh and Yves R Boisclair. 2008. Regulation of mammary parenchymal growth by the fat pad in pre- pubertal dairy heifers: role of inflammation-related proteins. J. Endo. 196: 539-546.

Hoekstra, N.J., P.C. Struik, E.A. Lantinga, M.E. Van Amburgh and R.P.O. Schulte. 2008. Can herbage nitrogen fractionation in Lolium perenne be improved by herbage management? NJAS – Wageningen Journal of Life Sciences. 55:167-180

Tylutki, T.P., D.G. Fox, V.M. Durbal, L.O. Tedeschi, J.B. Russell, M.E. Van Amburgh, T.R. Overton, L.E. Chase and A.N. Pell. 2008. Cornell Net Carbohydrate and Protein System: A model for precision feeding of dairy cattle. Anim. Feed Sci. Tech. 143:174 – 202.

S. A. Bascom, R. E. James, M. L. McGilliard, and M. Van Amburgh. 2007. Influence of dietary fat and protein on body composition of Jersey bull calves. J. Dairy Sci. 90:5600-5609.

M J Meyer, R P Rhoads, A V Capuco, E E Connor, A Hummel, Y R Boisclair, and M E Van Amburgh. 2007. Ontogenic and nutritional regulation of steroid receptor and IGF-I transcript abundance in the pre-pubertal heifer mammary gland. J. Endocrinol. 195:59 – 66.

R P Rhoads, J W Kim, M E Van Amburgh, R. A. Ehrhardt, S J Frank, and Y R Boisclair. 2007 Effect of nutrition on the GH responsiveness of liver and adipose tissue in dairy cows J. Endocrinol. 195:49 – 58.

Thorn, S. R., M. J. Meyer, M. E. Van Amburgh, and Y. R. Boisclair. 2007. Effect of estrogen on leptin and expression of leptin receptor transcripts in prepubertal dairy heifers J Dairy Sci. 90:3742-3750.

Borderas, F., M. A. G. von Keyserlingk, D. M. Weary, J. Rushen, A. M. de Passillé, and M. E. Van Amburgh. 2007. Letter to the Editor: The effects of force-feeding sick dairy calves: A comment on Quigley et al. (2006). J Dairy Sci. 90: 3567-3568.

E. E. Connor, M. J. Meyer, R. W. Li, M. E. Van Amburgh, Y. R. Boisclair, and A. V. Capuco. 2007. Regulation of gene expression in the bovine mammary gland by ovarian steroids. J. Dairy Sci. 90: E55-65E.

Meyer, M. J., A. V. Capuco, D. A. Ross, L. M. Lintault, and M. E. Van Amburgh. 2006. Developmental and Nutritional Regulation of the Prepubertal Bovine Mammary Gland: II. Allometric growth, epithelial cell proliferation, and the influence of age at slaughter on parenchyma development. J Dairy Sci. 89:4298-304.

Meyer, M. J, A. V. Capuco, D. A. Ross, L. M. Lintault, and M. E. Van Amburgh. 2006. Developmental and Nutritional Regulation of the Pre-pubertal Heifer Mammary Gland: I. Parenchyma and fat pad mass and composition. J. Dairy Sci. 89:4289-97.

Meyer, M J, A V Capuco, Y R Boisclair and M E Van Amburgh. 2006 Estrogen-dependent responses of the mammary fat pad in prepubertal dairy heifers. J. of Endocrinology. 190: 819–827.

Li, R. W., Meyer M J, Van Tassell C.P., Sonstegard T. S., Connor E.E., Van Amburgh M E, Boisclair Y R, Capuco, A V. 2006. Identification of estrogen-responsive genes in the parenchyma and fat pad of the bovine mammary gland by microarray analysis. Physiol Genomics.27:42-53

Daniels K.M., Webb K.E. Jr, McGilliard M.L., Meyer M.J., Van Amburgh M.E., Akers R.M. 2006. Effects of body weight and nutrition on mammary protein expression profiles in Holstein heifers. J Dairy Sci. 89:4276- 4288.

Albrecht, G.L., Q.M. Ketterings, K.J. Czymmek, M. Van Amburgh, and D.G. Fox. 2006. Whole Farm Nutrient Management: A capstone course preparing seniors for environmental management of dairy farms. Journal of Natural Resources and Life Science Education 35: 12-23

T. R. Callaway, J. E. Keen, T. S. Edrington, L. H. Baumgard, L. Spicer, E. S. Fonda, K. E. Griswold, T. R. Overton, M. E. Van Amburgh, R. C. Anderson, K. J. Genovese, T. L. Poole, R. B. Harvey, and D. J. Nisbet. 2005. Fecal Prevalence and Diversity of Salmonella Species in Lactating Dairy Cattle in Four States. J. Dairy Sci. 88: 3603-3608.

J. C. Marini and M. E. Van Amburgh. 2005. Partition of nitrogen excretion in urine and the feces of Holstein replacement heifers. J. Dairy Sci. 88: 1778-1784.

Van Amburgh, M. E. and J. K. Drackley. 2005. Current perspectives on the energy and protein requirements of the pre-weaned calf. Chapter 5. In Calf and heifer rearing: Principles of rearing the modern dairy heifer from calf to calving. Nottingham University Press. Ed. P. C. Garnsworthy.

Marini, J.C., J. Sands and M. E. Van Amburgh. 2005. Urea transport systems in relation to recycling. In: Ruminant physiology: Digestion, metabolism and impact of nutrition on gene expression, immunology and stress. Edited by K. Sejrsen, T. Hvelplund and M.O. Nielsen. Wageningen Academic Publishers, Wageningen, The Netherlands.

Keene, B.E., K. F. Knowlton, M. L. McGilliard, L. A. Lawrence, S. M. Nickols-Richardson, J. H. Wilson, A. M. Rutledge, L. R. McDowell and M. E. Van Amburgh. 2004. Measures of Bone Mineral Content in Mature Dairy Cows. J. Dairy Sci. 87:3816-3825.

Marini J. C., J. D Klein, J. M. Sands, and M. E. Van Amburgh. 2004. Effect of nitrogen intake on nitrogen recycling and urea transporter abundance in lambs. J Anim. Sci. 82:1157-64.

Fox, D.G., Tylutki, T.P, Tedeschi, L.O., Van Amburgh, M. E., Chase, L. E., Pell, A. P., Overton, T. R., and Russell, J. B. 2004. The Net Carbohydrate and Protein System model for evaluating herd nutrition and nutrient excretion. Anim. Sci. Feed Tech. 112:29-78.

Nonnecke, B. J., M. R. Foote, J. M. Smith, B. A. Pesch, and M. E. Van Amburgh. 2003. Composition and Functional Capacity of Blood Mononuclear Leukocyte Populations from Neonatal Calves on Standard and Intensified Milk Replacer Diets. J. Dairy Sci. 86: 3592-3604.

Block, S. S., R. P. Rhoads, D. E. Bauman, R. A. Ehrhardt, M. A. McGuire, B. A. Crooker, J. M. Griinari, T. R. Mackle, W. J. Weber, M. E. Van Amburgh, and Y. R. Boisclair. 2003. Demonstration of a Role for Insulin in the Regulation of Leptin in Lactating Dairy Cows. J. Dairy Sci. 86: 3508-3515.

Block, S. S., J. M. Smith, R. A. Ehrhardt, M. C. Diaz, R. P. Rhoads, M. E. Van Amburgh, and Y. R. Boisclair. 2003. Nutritional and developmental regulation of plasma leptin in dairy cattle. J. Dairy Sci. 86: 3206-3214.

Vicini, J. L., H. G. Bateman, M. K. Bhat, J. H. Clark, R. A. Erdman, R. H. Phipps, M. E. Van Amburgh, G. F. Hartnell, R. L. Hintz, and D. L. Hard. 2003. Effect of feeding supplemental fibrolytic enzymes or soluble sugars with malic acid on milk production. J. Dairy Sci. 2003 86: 576-585.

Marini, J. C. and M. E. Van Amburgh. 2003. Nitrogen metabolism and recycling in Holstein heifers. J. Anim Sci. 2003 81: 545-552.

Marini, J. C. K. W. Simpson, A. Gerold, M. E. Van Amburgh. 2003. The effect of immunization with jackbean urease on antibody response and nitrogen recycling in mature sheep. Livestock Prod. Sci. 81: 283- 292.

Fox, D. G and M. E. Van Amburgh. 2003. Modeling growth of cattle for application within the structure of the Cornell Net Carbohydrate and Protein System. Adv Exp Med Biol. 537:267-285

Smith, J. M., M. E. Van Amburgh, M. C. Diaz, D. E. Bauman, and M. C. Lucy. 2002. Modulation of the development of the somatotropic axis in Holstein bull calves by level of nutrient intake. J. Anim. Sci. 80:1528- 1537.

Block, S., W. R. Butler, R. A. Ehrhardt, A. W. Bell, M. E. Van Amburgh, and Y. R. Boisclair 2001. Decreased concentration of plasma leptin in periparturient dairy cows is caused by negative energy balance. J. Endocrinology 171:339-348.

J. N. Tikofsky, M. E. Van Amburgh and D. A. Ross. 2001. Effect of varying carbohydrate and fat levels on body composition of milk replacer-fed calves. J. Animal Sci. 79:2260-2267.

M. C. Diaz, M. E. Van Amburgh, J. M. Smith, J. M. Kelsey and E. L. Hutten. 2001. Composition of growth of Holstein calves fed milk replacer from birth to 105 kilogram body weight. J. Dairy Sci. 84:830-842.

R. Ruiz, P. J. Van Soest, M. E. Van Amburgh, D. G. Fox, and J. B. Robertson. 2001. Use of Chromium mordanted neutral detergent residue as a predictor of fecal output to estimate intake in grazing high producing Holstein cows. Anim. Feed Sci. Tech. 89:155-164.

Ehrhardt, R. A., R. M. Slepetis, J. Siegal-Willott, M. E. Van Amburgh, A. W. Bell and Y. R. Boisclair. 2000. Development of a specific radioimmunoassay to measure physiological changes of circulating leptin in cattle and sheep. J Endocrinol. 166:519-528.

Fox, D.G., M. E. Van Amburgh, and T. P. Tylutki. 1999. Predicting requirements for growth, maturity and body reserves in dairy cattle. J. Dairy Sci. 82:1968-1977.

Lana, R. P., J. B. Russell and M. E. Van Amburgh. 1998. The role of pH in regulating ruminal methane and ammonia production. J. Anim. Sci. 76:2190-2196.

Kelly, M. L., E. S. Kolver, D. E. Bauman, M. E. Van Amburgh, and L. D. Muller. 1998. Effect of intake of pasture on concentrations of conjugated linoleic acid in milk of lactating cows. J. Dairy Sci. 82:1630-1636.

Kelly, M. L., J. R. Berry, D. A. Dwyer, J. M. Griinari, Y. P. Chouinard, M. E. Van Amburgh, and D. E. Bauman. 1998. Dietary fatty acid sources affect conjugated linoleic acid concentrations in milk from lactating cows. J. Nutr. 128:881-885.

Van Amburgh, M. E., D. G. Fox, D. M. Galton, D. E. Bauman, and L. E. Chase. 1998. Evaluation of the National Research Council requirements and Cornell Net Carbohydrate and Protein System for growing Holstein heifers. J. Dairy Sci. 81:509-526.

Van Amburgh, M. E., D. M. Galton, D. E. Bauman, R. W. Everett, D. G. Fox, L. E. Chase, and H. N. Erb. 1998. Effects of three pre-pubertal body-growth rates in Holstein heifers on first-lactation performance. J. Dairy Sci. 81:527-538.

Van Amburgh, M. E., D. M. Galton, D. E. Bauman, and R. W. Everett. 1997. Management and economics of extended calving intervals with use of bST. Livestock Prod. Sci. 50:15-28.

Elrod, C. C., M. E. Van Amburgh, and W. R. Butler. 1992. Alterations of pH in response to increased dietary protein in cattle are unique to the uterus. J. Animal Sci. 71:702-706.

ABSTRACTS:

F. Righi, M. Simoni, S. Cutroneo, B. Prandi, T. Tedeschi, R. Pitino, T. Danese, S. Sforza, and M. van Amburgh. 2022. Amino acid profiles of hay-based diets in the Parmigiano- Reggiano cheese production area and the relationship with nitrogen use efficiency. J. Dairy Sci. Abstract.

A. C. Benoit, P. A. LaPierre1, G. D. Mechor, D. M. Barbano, and M. E. Van Amburgh. Effect of increasing monensin concentration on the performance of lactating dairy cows. M. E. Van Amburgh* and R. A. Molano,2021 Opportunities to improve the productivity of dairy cattle from conception through calving. J. Dairy Sci. Abstract.

A. B. P. Fontoura, V. Sáinz de la Maza-Escolà, M. X. Rodrigues, A. Javaid, E. Grilli, M. E. Van Amburgh, R. C. Bicalho, and J. W. McFadden. 2021. Effects of heat stress on ruminal volatile fatty acid concentrations and gastrointestinal microbiome in weaned Holstein calves supplemented with or without dietary organic acid and plant botanicals. J. Dairy Sci. Abstract.

P. A. LaPierre, S. Fredin, D. A. Ross, and M. E. Van Amburgh, 2020. Effects of differing dietary starch and digestible amino acid supply on amino acid efficiency and lactation performance in dairy cattle. J. Dairy Sci. Abstract.

M. Z. Toledo, M. L. Stangaferro, R. S. Gennari, P. L. J. Monteiro Jr., M. M. Perez, M. Masello, M. E. Van Amburgh, D. Luchini, R. D. Shaver, J. O. Giordano, and M. C. Wiltbank1, 2020 Effect of feeding rumen-protected methionine pre- and postpartum on health, herd exit dynamics, and time to pregnancy in multiparous dairy cows. J. Dairy Sci. Abstract.

M. Dineen, B. McCarthy, and M. E. Van Amburgh. 2020 Evaluation of in vitro fermentation methodology to characterize the aNDFom degradation of intensively managed pasture samples. J. Dairy Sci. Abstract.

B. N. Tate, A. B. P. Fontoura, V. Sáinz de la Maza-Escolà, J. T. Siegel Nieves, F. Wang, L. F. Wang, M. E. Van Amburgh, E. Grilli, and J. W. McFadden. 2020. Effects of dietary organic acid and plant botanical supplementation on growth and hematological profile in Holstein calves transitioning from milk replacer to starter. J. Dairy Sci. Abstract.

A.B. P. Fontoura, V. Sáinz de la Maza-Escolà, B. N. Tate, J. T. Siegel Nieves, A. T. Richards, F. Wang, L. F. Wang, M. E. Van Amburgh, E. Grilli, and J. W. McFadden. 2020. Effects of dietary organic acid and plant botanical supplementation on growth performance in Holstein calves challenged by heat stress. J. Dairy Sci. Abstract.

T. A. Westhoff, C. R. Seely, J. E. Cha, M. E. Van Amburgh, T. R. Overton, and S. Mann, T. L. Chandler. 2020. Response to LPS challenge after intravenous amino acid infusion in postpartum dairy cows. J. Dairy Sci. Abstract.

A. B. P. Fontoura, V. Sáinz de la Maza-Escolà, B. N. Tate, J. T. Siegel Nieves, A. T. Richards, F. Wang, L. F. Wang, M. E. Van Amburgh1, E. Grilli, and J. W. McFadden Effects of dietary organic acid and plant botanical supplementation on growth performance in Holstein calves challenged by heat stress. J. Dairy Sci. Abstract.

M. Dineen, B. McCarthy, P. Dillon, S. W. Fessenden, P. A. LaPierre, R. A. Molano, and M. E. Van Amburgh. 2019 Effects of feeding barley grain on intake, rumen pool size and apparent total tract digestibility in lactating dairy cattle fed pasture-based diets. J. Dairy Sci. Abstract.

M. Dineen, B. McCarthy, F. Coughlan, P. Dillon, and M. E. Van Amburgh. 2019. Effects of supplemental concentrate type on dry matter intake and milk solids production of mid-lactation dairy cattle grazing perennial ryegrass-based pasture. J. Dairy Sci. Abstract.

R. A. Molano, A. Saito, N. D. Luchini, and M. E. Van Amburgh. Effect of supplementing rumen-protected methionine or methionine analogs in calf starter on growth and efficiency of Holstein calves from 14 to 91 days of age. J. Dairy Sci. Abstract.

P. A. LaPierre, M. M. McCarthy, D. A. Ross, and M. E. Van Amburgh. 2019. Effects of precision essential amino acid formulation on a metabolizable energy basis for lactating dairy cows. J. Dairy Sci. Abstract.

R. A. Molano and M. E. Van Amburgh. 2019. Development of a model to predict nutrient requirements in pre- ruminant dairy calves up 105 kg of BW. J. Dairy Sci. Abstract.

A. F. Ortega*, D. A. Ross, and M. E. Van Amburgh. 2019. Amino acid composition of cattle tissue and milk, and various feeds used in ruminant diets using multiple hydrolysis times.

Nicholson, C. A. Simões, A. LaPierre, M. Van Amburgh. 2018. Modeling Complex Problems with System Dynamics: Applications in Animal Agriculture. Journal of Animal Science, Volume 96, Issue suppl_3, 7 December 2018, Pages 83,https://doi.org/10.1093/jas/sky404.183

Hare K J Romao L Leal G Hooiveld F Soberon H Berends M Boekschoten, M Van Amburgh J Martín- Tereso M Steele. 2018. Increased pre-weaning metabolizable energy supply affects the expression of genes related to adipogenesis and lipid metabolism in the skeletal muscle of prepubertal Holstein heifers. Journal of Animal Science, Volume 96, Issue suppl_3, 7 December 2018, Pages 348–349,https://doi.org/10.1093/jas/sky404.767

Lawrence, Joseph; Kerwin, Allison; Overton, Thomas; Darby, Heather; Smith, Margaret; Van Amburgh, Michael; Dineen, Michael; Norman, Sherrie; Payne, Keith; Fisher, Dan; and Ziegler, Sara, “New York and Vermont Corn Silage Hybrid Trials” (2018). Northwest Crops & Soils Program. https://scholarworks.uvm.edu/nwcsp/27

Higgs, R. J., B. K. Sloan, C. G. Schwab and M. E. Van Amburgh. 2015 Balancing dairy cattle diets for methionine or all essential amino acids relative to energy at negative and adequate levels of rumen nitrogen. J. Dairy Sci. 98: E suppl. 1.

Fessenden, S. J., A. Foskolos, E. Block, and M. E. Van Amburgh. 2015. Effects of feeding Fermenten or urea on milk production, rumen nitrogen metabolism and microbial nitrogen content in lactating dairy cattle. J. Dairy Sci. 98: E suppl. 1.

Zontini, A. M., A. Foskolos, D. A. Ross and M. E. Van Amburgh. 2015. An evaluation of the determination of uNDF in non-forage feeds. J. Dairy Sci. 98: E suppl. 1.

Zontini, A. M., A. Foskolos, D. A. Ross and M. E. Van Amburgh. 2015. aNDFom degradation behavior in non-forage feeds. J. Dairy Sci. 98: E suppl. 1.

Collao-Saenz, E. A., A. Foskolos, R. J. Higgs, M. N. Pereira and M. E. Van Amburgh. 2014. Evaluation of the CNCPS v6.5 for predicting metabolizable energy and protein allowable milk in sugarcane based diets. J. Dairy Sci. 97: E-suppl. 1.

Foskolos, A., E. A. Collao-Saenz, D. A. Ross, R. J. Higgs and M. E. Van Amburgh. 2014 Evaluation of the updated version of CNCPS (v6.5). J. Dairy Sci. 97: E-suppl. 1.

K. L. Russomanno, T. F. Christoph, R. J. Higgs, and M. E. Van Amburgh. 2013. Utilization of byproducts from human food production as feedstuffs for dairy cattle and relationship to greenhouse gas emissions and environmental efficiency. J. Dairy Sci. 96: E suppl. 1.

M. E. Van Amburgh, H. M. Hammon, and F. Soberon. 2013. The role of colostrum components on neonatal development and growth with emphasis on the calf. J. Dairy Sci. 96: E suppl. 1.: 405.

R. J. Higgs, K. L. Russomanno, T. F. Christoph, and M. E. Van Amburgh. 2013. Predicting methane and carbon dioxide emissions using the CNCPS. J. Dairy Sci. 96: E suppl. 1. Pg. 598, Abstr, TH359

Higgs, R.J., L. E. Chase, D. A. Ross, and M. E. Van Amburgh. 2012. Evaluating and refining the CNCPS feed library. J. Dairy Sci. 95:E suppl. 1: 126

Van Amburgh, M.E. 2012. Revising energy requirements of dairy breed calves and heifers. J. Dairy Sci. 95:E suppl. 1:211 (invited)

Soberon, F. and M.E. Van Amburgh. 2012. The effect of nutrient intake from milk or milk replacer of pre- weaned dairy calves on lactation milk yield as adults. J. Dairy Sci. 95:E suppl. 1:200 (invited)

Block, E., B. Bradford, W.M. Chalupa, I. J. Lean, S. LeBlanc, M. C. Lucy, J. McNamara, J. Morton, A. R, Rabiee, J.E.P. Santos, W.W. Thatcher, M. Van Amburgh, and M. J. VandeHaar. Integration of experimental designs and analytical approaches to co-ordinate efficiency of global efforts to optimize environmental and genetic effects on reproductive performance of dairy cattle. J. Dairy Sci. 95:E suppl. 1:718

Raffrenato, E. C.N. Nicholson, and M. E. Van Amburgh. 2011. A mathematical approach to predict the size and rate of digestion of a fast and slow pool and the indigestible NDF. J. Dairy Sci. 94:E suppl. 1:455. (abstr.)

Aguilar, M., M. Van Amburgh, W.A.D. Nayananjalie and M.D. Hanigan. 2011. Effect of cow variation on the efficiency of nitrogen recycling to the rumen in dairy cattle. J. Dairy Sci. 94: E. suppl. 1:122 (abstr.)

Soberon, F. and M. E. Van Amburgh. 2011. Effects of colostrum intake and pre-weaning nutrient intake on post-weaning feed efficiency and voluntary feed intake. J. Dairy Sci. 94:E suppl. 1:69. (abstr.)

Soberon, F. and M. E. Van Amburgh. 2011. Effects of pre-weaning nutrient intake in the developing mammary parenchymal tissue and fat pad. J. Dairy Sci. 94: E. suppl. 1:73 (abstr.)

F. Soberon, E. Raffrenato, R. W. Everett and M. E. Van Amburgh. 2010. Early life nutritional management and effects on long term productivity of dairy calves. 3rd EAAP Inter. Symp. Energy and Protein Metab. and Nutr. (Abstr.) Parma, Italy

E. Raffrenato, R. Fievisohn, K. W. Cotanch, R. J. Grant, L. E. Chase, and M. E. Van Amburgh. 2010. Effect of lignin linkages with other plant cell wall components on in vitro and in vivo NDF digestibility of forages and potential energy yield. 3rd EAAP Inter. Symp. Energy and Protein Metab. and Nutr. (Abstr.) Parma, Italy

Ramos-Nieves, G. Bernal-Santos, A. Faciola, M.E. Van Amburgh, and Y.R. Boisclair. 2010. Effects of birth weight and dietary caloric density on growth, voluntary intake and body composition of newborn lambs. 3rd EAAP Inter. Symp. Energy and Protein Metab. and Nutr. (Abstr.) Parma, Italy

Van Amburgh, M. E., E.B. Recktenwald, D. A. Ross, R. J. Higgs, T. R. Overton, and L. E. Chase. 2010. Nitrogen recycling and ruminal degradable protein requirements: Quantitative updates to describe microbial requirements, sources, and applications in ration formulation. J. Dairy Sci. (Abstr.) Invited.

F. Soberon, A. M. Severy and M. E. Van Amburgh. 2010. Performance of calves fed an all-milk or enzymatically modified plant protein containing milk replacer with and without a specific amino acid profile. J. Dairy Sci. (Abstr.)

Hofherr, M. W., D. A. Ross, M. E. Van Amburgh. 2010. The effect of abomasal infusion of histidine and proline on milk composition and amino acid utilization in high producing lactating dairy cows. J. Dairy Sci. (Abstr.)

Ross, D. A., M. M. McCullouch and M. E. Van Amburgh. 2010. A comparison of methods to evaluate in vitro intestinal digestibility of ruminant feeds. J. Dairy Sci. (Abstr.)

Raffrenato, E. and M. E. Van Amburgh. 2010. Sources of variation and importance of the quantification of the in-vitro NDF digestibility for estimating rates of NDF digestion. J. Dairy Sci. (Abstr)

Raffrenato, E., P.J. Van Soest and M. E. Van Amburgh. 2010. Development of a mathematical model to obtain rate of digestion and prediction of indigestible NDF and dry matter intake from NDF, IVNDFD and ADL. ADSA Modelers’ Meeting. Can. J. Anim. Sci. (Abstr.)

T.P. Tylutki V. Durbal, C.N. Rasmussen, and M.E. Van Amburgh. 2009. Implementation of a genetic algorithm for optimization within the Cornell Net Carbohydrate and Protein System framework. International Modeling Symposium, EAAP, Vichy, France. (Abstr.)

Raffrenato, E., F. Soberon, R. W. Everett, and M. E. Van Amburgh. 2009. Postnatal growth requirements of dairy calves and long term productivity measured by a test day model and from field observations. EAAP Meeting, Barcelona, Spain, (Abstr.)

Raffrenato, E., P. J. Van Soest, and M. E. Van Amburgh. 2009. An evaluation of the factors affecting the rate and extent of NDF digestion and a mathematical procedure for defining rates of digestion. EAAP Meeting, Barcelona, Spain. (Abstr.)

Higgs, R. J., L.E. Chase, and M. E. Van Amburgh. 2009. Assessing the ability of the Cornell Net Carbohydrate and Protein System to predict fecal and urinary nitrogen excretion in lactating dairy cows. J. Dairy Sci. (Abstr.)

Recktenwald, E.B., D.A. Ross, M.E. Van Amburgh. 2009. Nitrogen recycling in lactating dairy cows consuming diets predicted by CPM Dairy to be deficient in either ruminal N or metabolizable protein. J. Dairy Sci. (Abstr.)

Raffrenato, E., R. Fievisohn, K. W. Cotanch, R. J. Grant, L. E. Chase, and M. E. Van Amburgh. 2009. Effect of lignin linkages with other plant cell wall components on in vitro and in vivo NDF digestibility of forages. J. Dairy Sci. (Abstr.)

Bernal-Barragan, H., R.W. Blake, D.J.R. Cherney, and M.E. Van Amburgh. 2009. Nutritive value of standing mature Buffel grass (Cenchrus ciliaris) for dry season feeding in Northeastern Mexico. J. Dairy Sci. (Abstr.)

Absalon-Medina., R.W. Everett., M. E. Van Amburgh, and W. R. Butler. 2009. Imprinting effects of lactational performance from dam to calf during gestation. J. Dairy Sci. (Abstr.)

Soberon, F., E. Raffrenato, R. W. Everett, and M. E. Van Amburgh. 2009. Early life management and long term productivity of dairy calves. J. Dairy Sci. (Abstr.)

Van Amburgh, M. E., J. L. Capper, G.D. Mechor, and D.E. Bauman. 2008. Effects of dietary starch and unsaturated fat with Rumensin on milk fat depression in lactating dairy cattle. J. Dairy Sci. 91:T195. (Abstr.)

Recktenwald, E. B., D. A. Ross, T. R. Overton, L. E. Chase, P.Huhtanen, and M. E. Van Amburgh. 2008. Updates to the Cornell Net Carbohydrate and Protein System: Effects of changes in feed digestion rates and passage rate assignments on metabolizable energy and protein predictions. J. Dairy Sci. 91:T265. (Abstr.)

Soberon, F. J. L. Lukas, M. E. Van Amburgh, A.V. Capuco, and T. R. Overton. 2008. The effects of increased milking frequency during early lactation on metabolism and mammary cell proliferation in Holstein cows. J. Dairy Sci. 91:450. (Abstr.)

Raffrenato, E. R., M. E. Van Amburgh, and P.J. Van Soest. 2008. Measures of acid detergent lignin recovery and evaluations of the 2.4 time lignin factor for estimating indigestible NDF. J. Dairy Sci. 91:TH57. (Abstr.)

Van Amburgh, M. E., L. Nabte-Solis, E. B. Helmes, D. A. Ross, and T. D. Sonnenberg. 2008. Effect of beta- mannanase enzyme mixture addition to soy-containing milk replacers on growth and health of neonatal calves. J. Dairy Sci. 91:TH69. (Abstr.)

Cotanch, K. W., R. J. Grant, J. Darrah, M. E. Van Amburgh, D. A. Ross, and J. Haid. 2007. Ruminal and intestinal protein and amino acid digestibility of feather meal with blood products. J Dairy Sci. 90:100. (Abstr.)

Recktenwald, E.B., D. A. Ross and M. E. Van Amburgh. 2007. Effect of feeding corn silage based diets deficient in either predicted ruminal nitrogen or metabolizable protein on nitrogen utilization and efficiency. J. Dairy Sci. 90:345. (Abstr.)

Capuco, A. V. L.L. Coutinho, C.M. Evock-Clover, A. Minuti, T. S. Sonstedgard, Y.R. Boisclair, M. E. Van Amburgh, G. Bertoni, and L.K. Matukumalli. Ontogenic expression of microRNA in bovine mammary gland. J. Dairy Sci. 90:414. (Abstr.)

Raffrenato, E. R., M. E. Van Amburgh, J.B. Robertson, and P.J. Van Soest. 2007. Effect of lignin type, acid detergent lignin or Klason lignin, on rate and extent of NDF digestion. J. Dairy Sci. 90:564. (Abstr.)

Raffrenato, E. R., M. E. Van Amburgh, P.J. Van Soest, and J.B. Robertson. 2007. Estimating NDF rate of digestion: a comparison of different approaches for use in a first order model application. J. Dairy Sci. 90:565. (Abstr.)

Thorn, S.J. R. A. Ehrhardt, M. J. Meyer, R. P. Rhoads, M.E. Van Amburgh, and Y. R. Boislcair. 2006. Regulation of hepatic leptin receptor expression in periparturient dairy cows. J. Dairy Sci. 89:288. (Abstr.)

Capuco, A. V. EE. Connor, M. J. Meyer, R. W. Li, C. P. Van Tassell, T. S. Sonstegard, M. E. Van Amburgh and Y. R. Boisclair. 2006. Advancements and future challenges in understanding mammary gland function. J. Dairy Sci. 89:409. (Abstr.)

E. E. Connor, M. J. Meyer, R. W. Li, M. E. Van Amburgh,Y. R. Boisclair and A. V. Capuco. 2006. Regulation of gene expression in the bovine mammary gland by ovarian steroids. J. Dairy Sci. 89:426. (Abstr.)

Ross, D. A. J. B Robertson, and M. E. Van Amburgh. 2006. A comparison of the true protein assays using three precipitating agents and filter pore sizes. J. Dairy Sci. 89:362. (Abstr.)

Van Amburgh M. E. 2005. An evaluation of the calf and heifer models within the 2001 Dairy NRC publication. J. Dairy Sci. 88:253 (abstr.) Invited.

Daniels, K.M., K. E. Webb, Jr. M. L. McGilliard, M. J. Meyer, M. E. Van Amburgh and R. M. Akers. 2005. A proteomic approach to evaluate the effects of body weight and plane of nutrition on protein expression profiles of mammary gland extracts from Holstein heifers. J. Dairy Sci. 88:365. (Abstr.)

Mills, J. K., M.E. Van Amburgh and D. A. Ross. 2005. Effect of feeding medium chain triglycerides on calf growth, insulin responsiveness and body composition. J. Dairy Sci. 88:56. (Abstr.).

Sisson, E. K., M. J. Meyer, Y. R. Boisclair, M. E. Van Amburgh, and B. J. Johnson. 2005. Effect of ovariectomy and estradiol administration on bovine muscle insulin-like growth factor-I (IGF-I) and β- adrenergic receptor (βAR) messenger RNA (mRNA) abundance. J. Dairy Sci. 88:283. (abstr.)

Daniels, K. M., M. L. McGilliard, P.L. Boyle, M. J. Meyer, M. E. Van Amburgh, A. V. Capuco and R. M. Akers. 2005. Effects of body weight and plane of nutrition on histological development of mammary tissue in Holstein heifers. J. Dairy Sci. 88:288. (Abstr.)

Daniels, K. M., P.L. Boyle, M. L. McGilliard, M. J. Meyer, M. E. Van Amburgh, and R. M. Akers. 2005. Use of an immortalized bovine mammary epithelial cell line (MAC-T) to measure the mitogenic activity of extracts from heifer mammary tissue: effects of nutrition and body weight. J. Dairy Sci. 88:288. (Abstr.)

Ross, D.A. and M. E. Van Amburgh. 2005. Amino acid content of residues from in vitro and S. griseus incubations. J. Dairy Sci. 88:316 (Abstr.)

Meyer, M.J., D. A. Ross, D. E. Shaw, and M. E. Van Amburgh. 2004. Components of growth in Holstein heifers reared from early life on two levels of energy intake. J. Dairy Sci. 87:210 (Abstr)

Meyer, M. J., A. V. Capuco, A. Hummel, E. E. Connor, Y. R. Boisclair and M. E. Van Amburgh. 2004. Developmental and nutritional regulation of steroid receptor mRNA expression and epithelial cell proliferation in the prepubertal bovine mammary gland. J. Dairy Sci. 87:240 (Abstr)

Meyer, M.J., A. V. Capuco, and M. E. Van Amburgh. 2004. Effects of energy intake and time to puberty on mammary growth of prepubertal Holstein heifers. J. Dairy Sci. 87:275 (Abstr)

Vicini, J. L., D. T. Galligan, S. E. Bettis, C.R. Bilby, S.C. Denham, R. L. Hintz, J. L Holst, T. H. Klusenmeyer, E. D. Plunkett, B. A Crooker, W. J. Weber, and M. E. Van Amburgh. 2003. Effects of prepubertal growth rate and Posilac treatment of replacement dairy heifers on subsequent milk production and economics. J. Dairy Sci. 86:307 (Abstr.)

Vicini, J. L., S. E. Bettis, C.R. Bilby, S.C. Denham, R. L. Hintz, J. L Holst, T. H. Klusenmeyer, E. D. Plunkett, B. A Crooker, W. J. Weber, H. Chester-Jones and M. E. Van Amburgh. 2003. Effects of feed management program and Posilac on prepubertal growth rate of replacement dairy heifers. J. Dairy Sci. 86:308 (Abstr.)

Meyer, M. J., R. P. Rhodes, Y. R Boisclair, and M. E. Van Amburgh. 2003. Regional expression of IGF-I and estrogen receptor alpha within prepubertal bovine mammary parenchyma and fat pad. J. Dairy Sci. 86:301 (Abstr.)

Bascom, S., R. James, E. Hovingh and M. Van Amburgh. 2003. Influence of ratio of dietary fat to protein on body composition of Jersey bull calves. J. Dairy Sci. 86:136 (Abstr.)

Smith, J. M. and M. E. Van Amburgh. 2003. Effect of feeding fatty acids to prepubertal heifers on first lactation milk production. J. Dairy Sci. 86:22 (Abstr.)

Ross, D. A. and M. E.Van Amburgh. 2003. Amino acid composition of ruminant feeds and feed fractions. J Anim. Sci. 81:217 (Abstr.)

Rhoads, R.P., L. H. Baumgard, M. E. Van Amburgh, and Y. R. Boisclair. 2003. Nutritional modulation of the hepatic growth hormone responsiveness in late-lactating dairy cows. J. Dairy Sci. 86:297 (Abstr.)

Block, S. S., R. P. Rhoads, D. E. Bauman, R. A. Ehrhardt, M. A. McGuire, B. A. Crooker, J. M. Griinari, T. R. Mackle, W. J. Weber, M. E. Van Amburgh, and Y. R. Boisclair. 2002. Role of Insulin in the Regulating the concentration of plasma Leptin in Lactating Dairy Cows. J. Dairy Sci. 85:195 (Abstr.)

Van Amburgh, M. E. 2002. Growth and subsequent productivity of dairy replacements. American Dairy Science Assoc. J. Dairy Sci. 85:79. (Abstr). Invited.

Marini, J. C., J.D. Klein, J.M. Sands and M. E Van Amburgh. 2002. Effect of nitrogen intake nitrogen recycling and urea transporter expression in lambs. J. Anim. Sci. 80:245. (Abstr.)

Marini, J. C. and M. E Van Amburgh. 2002. Effect of nitrogen intake on total nitrogen excretion and its partition between urine and feces in Holstein heifers. J. Anim. Sci. 80:237. (Abstr.)

Smith, J. M., S.S. Block, N.L. Dykes, D. E. Bauman and M. E. Van Amburgh. 2002. Comparison between measurement of parenchymal development of heifer mammary glands by computed tomography and traditional dissection techniques. J. Dairy Sci. 85:337 (Abstr.)

Smith, J. M., S.S. Block, D. E. Bauman and M. E. Van Amburgh. 2002. Effect of feeding a calcium salt of conjugated linoleic acid (CLA) prior to puberty on body composition and mammary development in Holstein heifers. J. Dairy Sci. 85:338 (Abstr.)

Meyer, M.J., R.P. Rhoads, A.L. Marr, W. R. Butler, Y. R. Boislcair and M. E. Van Amburgh. 2002. Analysis of the spatial, hormonal, and developmental regulation of the estrogen receptor alpha gene in cattle. J. Dairy Sci. 85:338 (Abstr.)

Ballard, C.S. H. M. Wolford, C. J. Sniffen, M.P. Carter, P. Mandebvu, T. Sato, Y. Yabuuchi, and M. Van Amburgh. 2002. The effect of feeding three milk replacers regimens on calf intake, body weight gain and animal performance. J. Dairy Sci. 85:67 (Abstr.)

Marini, J. C. and M. E Van Amburgh. 2001. Effect of different levels of dietary protein on nitrogen metabolism of heifers. J. Anim. Sci. 79:(Abstr.)

Marini J. C., K. W. Simpson, A. Gerold and M. E. Van Amburgh. 2001. Effect of Jackbean urease immunization on nitrogen recycling in mature sheep. J. Anim. Sci. 79:(Abstr.)

Smith, J. M, B. J. Nonnecke, M. E. Van Amburgh, B. A. Pesch and J. A. Harp. 2001. Effects of dietary conjugated linoleic acid (CLA) on the composition and function of peripheral blood mononuclear leukocyte populations in heifer calves. J. Dairy Sci. 84: (Abstr.)

Van Amburgh, M. E. 2001. Composition and regulation of targeted growth of the neonate: implications for feeding systems and postweaning management. J. Anim. Sci (abstr). Midwest ASAS/ADSA meetings, Des Moines,

IA. Nonnecke, B.J., M. E. Van Amburgh, M.R. Foote, J. M Smith and T. H. Elsasser. 2000. Effects of dietary energy and protein on the immunological performance of milk replacer-fed Holstein bull calves. J. Dairy Sci. 83:135 (Abstr.)

Bork, A.L., J. M. Smith, M. R. Foote, and M.E. Van Amburgh. 2000. The somatotropic axis of young calves can be modulated by nutrition and bST. J. Dairy Sci. 83:143 (Abstr.)

Smith, J. M. A.L. Bork, M. R. Foote, and M.E. Van Amburgh. 2000. Responses to repeated bST challenges around weaning in Holstein heifer and bull calves. J. Dairy Sci. 83:144 (Abstr.)

Ehrhardt, R.A., R. M. Slepetis, A. W. Bell, D.J.R. Cherney, M. E. Van Amburgh, and Y.R. Boisclair. 2000. Nutritional regulation of circulating leptin in growing lambs is influenced by sex. J. Anim. Sci. 78:18 (Abstr.)

Boisclair, Y.R., R.A. Ehrhardt, S.S. Block, R.M. Slepetis, M. E. Van Amburgh and A. W. Bell. 2000. Regulation of leptin mRNA and plasma leptin during fetal life and the transition from pregnancy to lactation in ruminants. European Assoc. for Anim. Prod. 6:178 Paper Ph3.3. (Abstr.)

Smith, J. M., M.C. Diaz, M. E. Van Amburgh, M. C. Lucy, and D. E. Bauman. 1999. Metabolic responses to short-term bST administration in milk fed bull calves between birth and 100 days of age. J. Anim. Sci. 77:157 (Abstr.)

Diaz, M. C., J. M. Smith, J. M. Kelsey, E. L. Hutten and M. E. Van Amburgh. 1999. Net energy and protein requirements for pre-ruminant Holstein calves from birth to 105 kg bodyweight. J. Dairy Sci. 82:92 (Abstr).

Fox, D.G., Van Amburgh, M.E., and Tylutki, T.P. 1998. Predicting requirements for growth, maturity and body reserves in dairy cattle. J. Dairy Sci. 82:(Abstr.)

Van Amburgh, M. E. 1998. Accelerated heifer growth: lactation and economic outcomes. Midwest ADSA/ASAS. J. Dairy Sci. 81: (Abstr. 1195) (Invited)

Van Amburgh, M. E., Robertson, J. B., Van Soest, P. J., and Voorhees, J. 1997. Determination of soluble fiber fractions in ruminant feeds. J. Dairy Sci. 80:(Abstr. 185).

Kelly, M. L., Berry, J. R., Dwyer, D. A., Bauman, D. E., Van Amburgh, M. E., and Griinari, J. M. 1997. Effect of dietary fatty acid sources on conjugated linoleic acid (CLA) levels in milk from lactating dairy cows. J. Dairy Sci. 80: (Abstr.243).

Van Amburgh, M. E., Galton, D. M., Bauman, D. E. and Everett, R. W. 1996. Management and Economics of Extended Calving Intervals with Use of bST Workshop on the Biology of Lactation, Joint with American Society of Animal Science and European Association of Animal Producton. Lillehammer, Norway. Livestock Production Science.

Van Amburgh, M. E., Galton, D. M., Fox, D. G., Bauman, D. E., Chase, L. E. Erb, H. N. and Everett, R. W. 1994. Effect of pre-pubertal growth rate in Holstein heifers on first lactation milk yield. J. Dairy Sci. 77(Suppl. 1):185.

EXTENSION/OUTREACH RESPONSIBILITIES

Although I do not have a formal extension appointment, I participate in many state and national extension activities as part of my research program outreach. This is documented below in the section CONFERENCES/WORKSHOPS/IN-SERVICE PARTICIPATION. I spend approximately 10 to 15% of my professional time on extension and outreach related activities, at meetings, answering the phone or supporting the CNCPS.

SUMMARY OF EXTENSION AND OUTREACH ACTIVITIES

This section is required for all CALS faculty. Completion of this section will insure that formal and informal extension and outreach activities are captured in the CALS portfolio of land grant mission contributions. Some individuals may have contributions for the extension and outreach sections. The primary goal here is to capture the extension and outreach efforts of the CALS faculty.

0 % Formal appointment in Extension (Professorial, Senior Extension Associates and Extension Associates)

10 – 15 % Estimation of time spent in outreach activities (other than or in addition to formal appointment in Extension)

Please provide a brief summary (300 word max.) of your Extension and/or outreach activities. Describe what the activities are, how and when conducted, constituents served, impacts of the program and what indicators of success are used.

Extension – My extension activities are related to the Pro-Dairy program and other extension programs in the state. I do not have a formal extension program but am involved in developing activities like Winter Dairy Management meetings when the topic requires my expertise. I do extension meetings around the state if time allows and the topic is pertinent to my research and teaching. This impacts mostly producers and feed industry professionals in the state.

Outreach^b – My outreach activities are a function of my research program. Due to my involvement with the Cornell Net Carbohydrate and Protein System and CPM Dairy, I spend a significant amount of time training and communicating with the dairy and livestock industry – including producers, feed chemists, nutritionists and academics, about how to apply and interpret the model. This takes place on a state, national and international basis. For example, I spoke at the National Forage Testing Association meeting about chemical analyses required for better prediction of nutrient supply and the variation associated with many of these assays. This impacts anyone that sends a sample to any commercial forage and feed testing laboratories, since we guide the development and conduct of procedures. The chemical description of the feeds in the CNCPS drives the assays and the analyses provided by the commercial laboratories. In addition, my research work in several areas of ruminant growth, development, nutrition and physiology has much basis in application and results in my being asked to various conferences and meetings in the U.S. and elsewhere.

Extension Prizes, Awards: College of Agriculture and Life Sciences, Team Extension Award – Cornell Net Carbohydrate and Protein System

Current Program Work Teams/Program councils: I participate in college activities related to nutrient management on dairy farms, but have no official association because of my lack of extension appointment.

Extension/Outreach Workshops, Field Days, and Conferences: see conferences/workshops

Internet Presence/Distance Learning: Worked with companies to develop webinars related to nitrogen efficiency in lactating dairy cattle and the application of the CNCPS. Adisseo, Novus. Have conducted webinars for many groups in the dairy industry – Calf and Heifer Growers Association, Church and Dwight, Co., Pfizer, Elanco, DAIReXNET, Hoards Dairyman, Dairy Herd Management. I have participated in many webinars for various groups and continue to do so at their request on topics ranging from colostrum management, early life calf management to amino acid requirements and fiber digestibility and nitrogen efficiency of high producing lactating cattle.

Policy Engagement: Worked with several organizations in Rome, Italy in an effort to help them recognize how current payment policies for milk were not benefiting or improving the profitability or sustainability of their dairy farms and dairy industry.

Further, at the request of the Dean, I have engaged the New York Governor’s office and several other key political leaders on industry level decisions needed to help increase the milk supply in NY to support the growth in yogurt and other processing.

Key Audiences and Scope of Impact: My key audience is the dairy industry of the U.S. and other regions of the world. Impacts: changes in recommendations for feeding dairy calves and heifers around the world, 2) changing the manufacturing of milk replacers in North America, Japan and Europe, 3) challenging the nutrition industry of the U.S. through work investigating the nitrogen dynamics of the cow – resulting in less nitrogen being fed which reduces environmental impacts; 4) enhancing and updating the Cornell Net Carbohydrate and Protein System (CNCPS) – used by many hundreds of nutritionists around the world to improved nutrient supply to dairy and beef cattle – will reduce the environmental impact of dairy farms. The CNCPS, through the software developed by license holders is used to formulate diets for approximately 70% of the dairy cattle in North America and is used in over 40 countries around the world.

CONFERENCES/WORKSHOPS/INSERVICE

I spoke at seven conferences in the US and Internationally in 2023.

Benoit, A.C.; LaPierre, P.A.; Mechor, G.D.; Barbano, D.M.; Van Amburgh, M.E. 2021. Effect of Increasing Monensin Concentration on the Performance of Lactating Dairy Cows Fed Contemporary Diets. Proc. Cornell Nutr. Conference, Syracuse NY

Dozens of webinars, on a regional, national, and international basis over the last year. Too numerous to state.

LaPierre, P. A.; Luchini, D.; Ross, D. A.; Van Amburgh, M. E. 2019 Effects of Precision Essential Amino Acid Formulation on a Metabolizable Energy Basis for Lactating Dairy Cows. Proc. Cornell Nutr. Conf. Syracuse, NY. (500 people)

Dineen, M.; McCarthy, B.; Dillon, P.; Fessenden, S.; LaPierre, P. A.; Van Amburgh, M. E. Evaluation and Development of the Cornell Net Carbohydrate and Protein System v.7 Using a Unique Pasture-Based Data Set. Proc. Cornell Nutr. Conf. Syracuse, NY. (500 people)

Van Amburgh, M.E. 2019. Optimizing the replacement dairy heifer for lifetime performance. Nantes, France. (300 people)

Van Amburgh, M. E. 2019. Improving milk production and heifer growth under Indian conditions – prioritizing resources and financial support. Tiptur, India (80 people)

Van Amburgh, M. E. 2019. Integration of energy and protein to predict amino acid requirements for lactating dairy cattle. CA Nutrition Conference, Visalia, Ca. (130 people)

Van Amburgh, M. E. 2019. Optimizing the replacement dairy heifer for lifetime performance. Mexican Holstein Association Annual Meeting, Queretero

Van Amburgh, M. E. 2019. Training sessions for the Cornell Net Carbohydrate and Protein System with support from NDS. Two locations in Chile, Santiago and Orsono. (280 people)

Van Amburgh, M. E. 2019. Early life nutrition and management of calves and effects on lifetime productivity. Smart Care Calf Conference, Guelph Ontario (200 people)

LaCount, S., M. Van Amburgh, T. R. Overton. 2018. Strategies to optimize dietary energy in fresh cow rations. Proc. Cornell Nutr. Conf., Syracuse, NY (500 people)

LaPierre, A. R. Higgs, M. E. Van Amburgh. 2018. Milk like a cow, eat like a pig: developments in nitrogen efficiency and amino acid balancing for lactating dairy cattle. Proc. Cornell Nutr. Conf. Syracuse, NY (500 people)

Van Amburgh, M. E. M. Dineen, P.A. LaPierre, J. Lawrence, A. Kerwin, T. R. Overton. 2018. Determination of the first limiting physical factors in corn silage hybrids: modeling multiple pools of ruminal aNDFom digestion. Proc. Cornell Nutr. Conf., Syracuse, NY. (500 people)

Van Amburgh, M. E. M. Dineen, P.A. LaPierre. 2018. Fiber digestibility, rumen function and modeling multiple pools of aNDFom digestion. Herd Health and Nutrition Conf. Syracuse, NY. (300 people)

Mike Van Amburgh, Debbie Ross, Sam Fessenden, Ryan Higgs, Marcelo Gutierrez-Botero, Larry Chase, Andres Ortega and Andrew LaPierre. 2018. Modeling and Integrating Metabolizable Energy and Protein Supply and Requirements in Dry and Lactating Dairy Cattle to Optimize Nitrogen Utilization. Canadian Animal Nutr. Conf. Edmonton, Canada. (200 people)

Van Amburgh, M. E. 2018. Development and evaluation of an assay to predict intestinal nitrogen digestibility in cattle. Four State Nutr. Conf. (400 people)

Van Amburgh, M. E. 2018. Communication from the Dam to the Calf and Nutrient Requirements and Long-Term Impacts on Productivity of Dairy Calves and Heifers. Dairy Cattle Reproduction Council Proc. Indianapolis, IN. (200 people)

Van Amburgh, M. E. 2018. Role of colostrum and colostrum components in communicating to the calf. Central Plains Dairy Expo., Brookings, South Dakota. (100 people)

Van Amburgh, M. E. 2018.Optimizing early growth in dairy calves through colostrum, nutrition and management. Western Canadian Dairy Conference. Alberta, Canada (300 people)

Van Amburgh, M.E. 2018. Dairy heifer management, inventory and profitability. Delaware Co. Extension meetings. (40 people)

Van Amburgh, M.E. 2017. Dry and transition cow workshops in Wisconsin with the Professional Dairy Producers of Wisconsin. Two locations, 200 participants.

Van Amburgh, M.E. 2017. Cornell Cooperative Extension Inservice session on nitrogen and phosphorous excretion and environmental impact (20 participants)

Van Amburgh, M.E. 2017. Cornell Nutrition Conference Syracuse NY. Presentation on amino acid chemistry and nutrition. 500 participants.

Van Amburgh, M.E. 2017. Nutrition and CNCPS workshop in Hungary (180 participants)

Van Amburgh, M.E. 2017. Nutrition and CNCPS workshop in Chile (90 participants in two locations)

Van Amburgh, M.E. 2017. Nutrition and CNCPS workshop in England (150 participants)

Van Amburgh, M.E. 2017. Modeling/CNCPS seminar at TEAGASC, Moorepark, June (100 participants)

Van Amburgh, M.E. 2017. Webinars for Bayer Animal Health via Germany (40 participants)

Van Amburgh, M.E. 2017. ADSA Discover Conference on Heifers, Chicago (140 participants)

Van Amburgh, M.E. 2017. Nutrition and CNCPS workshop in Denmark for 4 days (20 participants)

Van Amburgh, M.E. 2017. One Health Panel and Conference in Hong Kong sponsored by Einaudi Center and Provost Office for International Affairs. (100 participants)

Van Amburgh, M.E. 2017. Western Dairy Management Conference, Reno, NV presented paper on calf health and nutrition. (1,200 participants)

Van Amburgh, M.E. 2017. Pacific Northwest Nutrition Conf. Washington. (120 participants)

Van Amburgh, M.E. 2015. Calf and heifer management and nutrition workshops in several locations around Ireland. (300 participants)

Zontini, A., A. Foskolos, D. A. Ross, J. Metcalf, P. H. Doane, and M. E. Van Amburgh. 2015 Research Update: formulating diets for lactating cattle using multiple pools of NDF digestibility. Pp. 189-198. Proc. Cornell Nutr. Conf. Syracuse, NY. (450 people)

Van Amburgh, M.E., A Foskolos and R. J. Higgs. 2015. Balancing diets with the CNCPS v6.5 – what’s changed and implications for use. Pp. 115-124. Proc. Cornell Nutr. Conf. Syracuse, NY. (450 people)

Van Amburgh. M.E. 2015 Environmental considerations for calf and heifer management. Great Lakes Dairy Conference, Frankenmuth, MI. (300 people)

Van Amburgh. M.E. 2015. Early life nutrition of calves: What is mom communicating to the calf? World Dairy Expo, Madison WI. (300 people)

Van Amburgh, M.E. 2015. Calf and heifer management and long term productivity. Dairy Day in Cooperstown, NY and Balston Spa, NY.

Van Amburgh, M.E. 2015. Nitrogen efficiency and environmental impact of dairy cattle. Cargill Global Dairy Meeting. Amsterdam, Netherlands. (300 people)

Van Amburgh. M.E. 2015. Efficiency of use of Nitrogen in Dairy Cattle and updates to the CNCPS v6.5 and Implications for use. Mid-South Nutrition Conf. Dallas, TX. (200 people)

Van Amburgh, M. E. 2015. Webinar for AMTS, Cortland, NY. Updates and Application of the CNCPS v6.5.

Guiterrez-Botaro, M., A. Foskolos, D. A. Ross, and M. E. Van Amburgh. 2014. Balancing for intestinal nitrogen indigestibility in high producing lactating cattle: Ons step closer to feeding a cow like a pig? Pp. 140- 147. Proc. Cornell Nutr. Conf. (400 participants)

Cotanch, K. W., R. J. Grant, M. E. Van Amburgh, A. Zontini, M. Fustini, A. Palmonari and A. Formigoni. 2014. Applications of uNDF in ration modeling and formulation. Pp 114-131. Proc. Cornell Nutr. Conf. (400 participants)

Van Amburgh, M. E. 2012. Webinar for Dairy Herd Management. Increasing Nitrogen Efficiency with Amino Acid Balancing in Lactating Cows. Recorded 11.27.12.

Russomanno, K. L., M. E. Van Amburgh, and R. J. Higgs. 2012. An Evaluation of Using ByProduct Feeds in Lactating Cow Diets on Greenhouse Gas Emissions Using CNCPS v6.1. Proc. Cornell Nutr. Conf. (350 participants)

Van Amburgh, M.E. 2012. Early life nutrition and management and long-term productivity of calves. Minnesota Nutr. Conf. Owatonna, MN. (70 participants)

Van Amburgh, M.E., L.E. Chase, T. R. Overton. 2012. CNCPS version 6.1 training and discussion session. Advanced Dairy Nutrition Training Course. Cornell University, Ithaca, NY. (40 participants)

Van Amburgh, M.E., F. Soberon and D. Lopez. 2012. Role of colostrum components in supporting growth and feed efficiency. Advanced Dairy Nutrition Training Course. Cornell University, Ithaca, NY. (120 participants)

Higgs, R. J., L.E. Chase, D. A. Ross and M.E. Van Amburgh. 2012. Updates to the CNCPS feed library – derivation and application. Advanced Dairy Nutrition Training Course. Cornell University, Ithaca, NY. (120 participants)

Van Amburgh, M.E. and D.A. Ross. 2012. Intestinal digestibility determination and model inputs – methods and expectations. Advanced Dairy Nutrition Training Course. Cornell University, Ithaca, NY (120 participants)

Van Amburgh, M.E. and E. B. Recktenwald. 2012. Nitrogen recycling in dairy cows – opportunities for ruminal and whole-animal metabolism. Advanced Dairy Nutrition Training Course. Cornell University, Ithaca, NY (120 participants)

Van Amburgh, M.E. M. J. Thomas, A. Moser. 2012. Calf management round table discussion. Northeast Dairy Producers Conference. Syracuse, NY (500 participants)

Van Amburgh, M.E., F. Soberon, J. Karszes, and R.W. Everett. 2012. Management of calves and heifers that makes economic sense. Vermont Dairy Producers Conference. Burlington, VT. Feb. 14. (150 participants)

Van Amburgh, M.E., F. Soberon, J. Karszes, and R.W. Everett. 2012. Early life nutrition and management and long-term productivity of calves. Winter Dairy Management meeting. Feb. 13. Richfield Springs, NY. (60 participants)

Van Amburgh, M. E. 2012. Dairy nutrition training workshop, January 15-18. University of Milan School of Veterinary Medicine, Italy. Topics covering calf nutrition, nitrogen efficiency, NDF digestion, modeling, mammary protein synthesis, CNCPS feed library development, milk composition. In cooperation with Fabermatica, a license holder for the CNCPS intellectual property. (80 participants)

Van Amburgh, M.E. 2011. Comparison of predictions and discussion of differences in CNCPS, CPM Dairy and 2001 Dairy NRC models. Vita Plus Co., Madison WI. (30 participants)

Van Amburgh, M.E. 2011. Application of rates and extents of NDF and starch digestion in the CNCPS and related models. Workshop for Cows Come First/Novus, International, Co. Erie, PA. (12 participants)

Van Amburgh, M.E., F. Soberon, J. Karszes, and R.W. Everett. 2011. Early life nutrition and management and long-term productivity of calves. Group Housed Calf Conference. Dec. 1. Syracuse, NY. (270 participants)

Soberon, F. and M. E. Van Amburgh. 2011. Integrating concepts of pre-pubertal mammary development and rates of body growth to describe differences in first lactation milk yield. Proc. Cornell Nutr. Conf. Pp. 75-85. Syracuse, NY. (400 participants)

Van Amburgh, M.E., F. Soberon, E. Raffrenato, J. Karszes, and R.W. Everett. 2011. Early life nutrition and management and long-term productivity of calves. Dairy Seminar Section. Amer. Assoc. Bovine Pract. St. Louis, MO (200 participants)

Van Amburgh, M. E. 2011. Preconference seminar on calf and heifer management and nutrition training. Amer. Assoc. Bovine Pract. St. Louis, MO (32 participants)

Van Amburgh, M. E. 2011. Nitrogen efficiency and metabolism, NDF digestibility and the future of CNCPS. Agricultural Modeling and Training Systems training workshop for nutrition software. Ithaca, NY. (50 participants)

Van Amburgh, M. E. 2011. Forage digestibility, income over feed costs and how to survive in today’s economic climate. Dairy Nutrition and Management workshop. Ragusa, Italy. (50 participants)

Van Amburgh, M. E. 2011. Nutrition workshop with University of Parma and Consorzio Agrario Parma. Parma, Italy. (30 participants).

Van Amburgh, M. E. 2011. Forage digestibility, income over feed costs and how to survive in today’s economic climate. Dairy Nutrition and Management workshop. Potenza, Italy. (34 participants)

Van Amburgh, M. E. 2011. Dairy nutrition training workshop, June 28-30, Reggio Emilia, Italy. Topics covering calf nutrition, nitrogen efficiency, NDF digestion, modeling, mammary protein synthesis, CNCPS/NDS feed library development. In cooperation with RUM&N, a license holder for the CNCPS intellectual property. (70 participants)

Van Amburgh, M. E. 2011. Balancing for amino acids in lactating dairy cattle using dynamic models. Workshop for Vetagro. Reggio-Emilia, Italy (12 participants from Europe)

Van Amburgh, M. E. 2011. Nitrogen efficient diets in lactating cattle. Basic Dairy Nutrition Training course, Miner Inst. Chazy, NY. (60 participants)

Van Amburgh, M. E. 2011. Calf and heifer nutrition and management. Basic Dairy Nutrition Training course, Miner Inst. Chazy, NY. (60 participants)

Van Amburgh, M. E. 2011. Training session for CNCPS. Basic Dairy Nutrition Training course, Miner Inst. Chazy, NY. (17 participants)

Van Amburgh, M. E. 2011. Optimizing Dairy Performance with Amino Acid Balancing using the CNCPS. Webinar for Church and Dwight, Co.

F. Soberon and M. E. Van Amburgh. 2011. Preconference workshop on calf nutrition and management. Minnesota Dairy Health Conference for Veterinarians. (110 participants)

Van Amburgh, M. E. 2011. Back to Basics: Health & Economics of Accelerated Heifer Growth. Webinar for Dairy Calf and Heifer Association. June 7. (over 120 participants – largest webinar for this group – archived for later download).

Van Amburgh, M. E. 2011. Nitrogen efficiency in lactating cattle and balancing diets with the CNCPS. Four State Nutrition Conf. workshop. (35 participants)

Van Amburgh, M. E. 2011. Taking the long view: treat them nice as babies and they will be better adults. Western Dairy Management Conf. Reno, NV. (1,500 participants)

Van Amburgh, M. E. 2011. Early Life nutrition and Impacts on Future Performance. Herd Health Symposium. Manchester, NH. (90 participants)

Van Amburgh, M. E. 2011. Early Life nutrition and Impacts on Future Performance. Herd Health Symposium. Syracuse, NY (120 participants)

Van Amburgh, M. E. 2011. Early life nutrition and impacts on productivity. Webcast for Pfizer Animal Health.

Van Amburgh, M. E. 2011. CNCPS version 6.1 training and discussion session. Advanced Dairy Nutrition and Management School. Visalia, CA. (52 participants – 1.2 M cows)

Van Amburgh, M. E. 2011. Implications of early life nutrition and management on long-term performance. Advanced Dairy Nutrition and Management School. Visalia, CA. (52 participants – 1.2 M cows)

Grant R. J. and Van Amburgh, M. E. 2011. Current concepts in peNDF, NDF digestibility, and fragility. Advanced Dairy Nutrition and Management School. Visalia, CA. (52 participants – 1.2 M cows)

Van Amburgh, M. E. 2011. Nitrogen recycling and metabolism – ruminal and whole-animal opportunities. Advanced Dairy Nutrition and Management School. Visalia, CA. (52 participants – 1.2 M cows)

Van Amburgh, M. E. and T. R. Overton. 2010. Current and future threats to food production and especially dairy production in the Northeastern U.S., Jefferson-Lewis County NY Farm Bureau Annual Meeting. (80 participants)

Van Amburgh, M. E. 2010. Calf and heifer management and nutrition for lifetime productivity. Shurgain Nutrition meeting, Stratford, Ontario, Canada (100 participants)

Van Amburgh, M. E. 2010. Updates to the Cornell Net Carbohydrate and Protein System. Penn State Nutr. Conf. and Workshop. Grantville, PA. (60 participants)

Van Amburgh, M. E., E.B. Recktenwald, D.A. Ross, L. E. Chase, and T. R. Overton 2010. Updates to the Cornell Net Carbohydrate and Protein System. Proc. Cornell Nutr. Conf. Pp. (350 participants)

Raffrenato, E. and M. E. Van Amburgh. 2010. Refinement of the Estimation of NDF Pool Size and Implications for Intake. Proc. Cornell Nutr. Conf. (350 participants)

Van Amburgh, M. E. 2010. Calf and heifer management and nutrition for lifetime productivity. Dairy Business Working group, meeting at Cornell University. (40 participants)

Van Amburgh, M. E. 2010. Preconference workshop on milk composition, Amer. Assoc. Bovine Pract., Albuquerque, NM. (30 participants)

Van Amburgh, M. E. 2010. Preconference seminar on calf and heifer management and nutrition training. Amer. Assoc. Bovine Pract. Albuquerque, NM. (26 participants)

Van Amburgh, M. E. 2010. Preconference workshop: Understanding feed analyses and composition for use in ration formulation models. Amer. Assoc. Bovine Practitioners, Albuquerque, NM. (22 participants)

Van Amburgh, M. E. 2010. Dairy Profit Seminars at Empire Farm Days, Calf management panel discussion. Seneca Falls, NY. (80 participants)

Van Amburgh, M. E. 2010. Calf management meeting and discussion group. Cornell Coop. Extension, Homer, NY. (30 participants)

Van Amburgh, M. E. and T. R. Overton. 2010. Current and future threats to food production and especially dairy production in the Northeastern U.S., Northeastern Branch of the Crop, Soil and Agronomy Societies of America, Ithaca, NY (Invited) (60 participants)

Van Amburgh, M.E. 2010. Adapting the CNCPS as a platform for nutrient requirements in the Chinese Dairy Industry. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing.

Van Amburgh, M.E. 2010. Improving the efficiency of milk production in China; foundations for ration formulation and implementation in the Chinese Dairy Industry. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing

Van Amburgh, M. E. 2010. Improving nitrogen efficiencies in lactating dairy cattle. Novus International Nutrition Workshop, Bluff Point, NY (70 participants)

Van Amburgh, M. E. 2010. Organized five day workshop for 35 Italian nutritionists at Cornell University in collaboration with our Advanced Dairy Nutrition Training Course. The nutritionists all use NDS software, which is a licensed version of the CNCPS, thus it was an extension of our modeling efforts.

Van Amburgh, M. E. 2010. Calf and heifer management and nutrition for lifetime productivity. Nitrogen recycling in dairy cattle. Advanced Nutrition Training Course, Cornell University, Ithaca, NY. (120 participants)

Van Amburgh, M. E. 2010. Improving nitrogen efficiencies in lactating dairy cattle. Cargill Technical Meeting, Clark Summit, PA (120 participants)

Van Amburgh, M. E. 2009. Corn silage digestibility and rates of degradation and implications for hybrid selection. Growmark FS, LLC Annual meetings, Grantville, PA and Rochester, NY (130 participants)

Van Amburgh, M. E. 2009. Series of workshops in Northern Italy, dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Verona, Padua and Cremona, Italy. Sponsored by Pioneer Hybrids International. (300 participants)

Chase, L. E., R. J. Higgs, and M. E. Van Amburgh. 2009. Feeding low crude protein rations to dairy cows – opportunities and challenges. Proc. Cornell Nutr. Conf. Pp. 235-241.

Raffrenato, R. Fievsiohn, K. W. Cotanch, R. J. Grant, P. J. Van Soest, L. E. Chase and M. E. Van Amburgh. 2009. aNDF, NDFd, iNDF, ADL and kd: what have we learned. Proc. Cornell Nutr. Conf. Pp 81-98. Syracuse, NY (400 participants)

Recktenwald, E. B. and M. E. Van Amburgh. 2009. Refining nitrogen feeding using current knowledge of recycled urea and microbial nitrogen uptake. Proc. Cornell Nutr. Conf. Pp. 69-80. Syracuse, NY (400 participants)

Van Amburgh, M. E. 2009. Understanding nitrogen metabolism and recycling in dairy cattle: opportunities for improved efficiencies. Cargill Animal Nutrition and Elanco Animal Health Conf., Minneapolis, MN. (45 participants)

Van Amburgh, M. E. 2009. Nitrogen efficiency and opportunities for lowering crude protein feeding in lactating dairy cows. Novus International, Advisory Committee meeting, St. Louis, MO. (25 participants)

Van Amburgh, M. E. 2009. Early life calf management and nutrition: impacts on lifetime productivity. Land O’Lakes Veterinary Conference, St. Louis, MO. (60 participants)

Van Amburgh, M. E., 2009. Calf and heifer management for lifetime productivity. WI Veterinary Medical Association Annual Meeting, Madison, WI. Invited talk. (120 participants)

Van Amburgh, M. E. 2009. Preconference seminar on milk composition, American Association of Bovine Practitioners, Omaha, NE.

Van Amburgh, M. E. 2009. Calf and heifer management and nutrition training. Preconference session, Amer. Assoc. Bovine Pract. Omaha, NE.

Van Amburgh, M. E. 2009. Calf and heifer management and nutrition training. Basic Nutrition Training Course, Miner Institute, Chazy, NY. (60 participants)

Van Amburgh, M. E. 2009. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Reggio Emilia, Italy (80 participants, four day workshop)

Van Amburgh, M. E. 2009. Improving feeding and management of Dairy Cattle – enhancing efficiencies to improve profitability. Consorzio Agrario Cremona, Cremono, Italy (110 participants)

Van Amburgh, ME. 2009. Developing progressive nutrition and management programs for calves and heifers. Summer Dairy Institute, Cornell University College of Veterinary Medicine. (30 participants)

Van Amburgh, M.E. 2009. Early life calf management and nutrition: impacts on lifetime productivity. First International Symposium on Dairy Cow Nutrition and Milk Quality. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing (500 participants)

Van Amburgh, M. E. 2009. Calf and heifer management programs to optimize lifetime profitability. King’s Agriseeds, Ovid, NY (70 participants)

Van Amburgh, M. E., F. Soberon, E. Raffrenato, and R. W. Everett. 2009. Early life nutrient management and long-term productivity of calves. Florida Ruminant Nutrition Symposium, Gainesville, FL (130 participants)

Van Amburgh, M. E. 2009. Early life management and long-term productivity in calves. Pennfield Feeds, Lancaster, PA. (120 participants)

Van Amburgh, M. E. 2009. Calf and heifer management to enhance lifetime productivity. Owego, NY (70 attendees)

Van Amburgh, M. E. 2008. Calf and heifer management for enhanced lifetime productivity, transition cow programs and fiber digestibility and intake. Servizio Aziendale Tecnico Allevatori (S.A.T.A.) Conference, Garda, Italy. (120 attendees)

Van Amburgh, M. E., J. L Capper, G. D Mechor, and D. E. Bauman. 2008. Rumensin and milk fat production. Proc. Cornell Nutr. Conf. Pp. 99-112. (350 participants)

Van Amburgh, M. E., E. Raffreanto, and F. Soberon. 2008. Early life management and long-term productivity of dairy calves. Proc. Cornell Nutr. Conf. Pp. 185-192. (350 participants)

Van Amburgh, M.E. 2008. Nutrient requirements and management of calves and heifers. American Assoc. of Bovine Practitioners. Annual Meeting, Charlotte, NC (30 participants)

Van Amburgh, M. E. 2008. Calf and heifer nutrition and management. Nitrogen dynamics in lactating dairy cattle. Advanced Dairy Nutrition Training, Cornell University. (60 participants)

Van Amburgh, ME. 2008. Developing progressive nutrition and management programs for calves and heifers. Summer Dairy Institute, Cornell University College of Veterinary Medicine. (30 participants)

Van Amburgh, M. E. 2008. Protein and amino acid nutrition of dairy cattle and dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Bucknell Nutrition Conference, Lewisburg, PA (110 participants)

Van Amburgh, M. E. 2008. Nitrogen recycling and efficiency of use in lactating dairy cattle and application to the Cornell Net Carbohydrate and Protein System. Pennfield Feeds Nutrition Training Course. Williamsport, PA (70 participants)

Van Amburgh, M. E. 2008. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. University of Parma, Italy (80 participants) Van Amburgh, M. E. 2008. Protein and amino acid nutrition of dairy cattle and dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Consorzio Agrario di Parma, Parma, Italy (20 participants)

Van Amburgh, M. E. 2008. Calf and heifer management, mammary development, implications of early life nutrition on long term management. Dairy Health Management Certificate Program, College of Veterninary Medicine, University of Guelph, Guelph, Ontario, Canada (60 participants)

Van Amburgh, M. E. 2008. Effect of Early Life Nutrient Intake on Long-Term Productivity of Calves. Proc. Southwest Nutrition Conf. Phoenix, AZ. (300 participants)

Van Amburgh, M. E., J. Mills, D. Waterman. 2008. Nutrition and nutritional management of calves and heifers. Winter Dairy Management School. Nine seperate meetings over several weeks. Pro-Dairy, Cornell University. (>400 participants)

Van Amburgh, M. E., J. A. Capper, D. E. Bauman. 2008. A Perspective on the Environmental Impact of the Dairy Industry – Issues and Progress. Northeast Dairy Producers Conf. Syracuse, NY. (500 participants)

Van Amburgh, M. E. 2008. Biology of the calf and heifer: nutrient requirements, mammary develop and long term productivity. Dairy Production Medicine Seminar, UC Davis School of Veterinary Medicine, Tulare, Ca. (60 participants)

Van Amburgh, M. E., E. B. Recketenwald, D. A. Ross, T. R. Overton and L. E. Chase. 2007. Improving the efficiency of use of nitrogen in lactating dairy cattle: Revisiting the CNCPS approach. Proc. Cornell Nutrition Conf. Syracuse, NY (370 participants).

Van Amburgh, M. E. 2007. Dairy Cattle Nutrition Symposium, University of Bologna, Italy (65 participants)

Van Amburgh, M. E. 2007. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Bologna, Italy (50 participants)

Van Amburgh, M. E. 2007. Dairy Cattle Nutrition Symposium – Forage digestibility, University of Parma School of Veterinary Medicine, Parma, Italy. 140 participants.

Van Amburgh, M. E. 2007. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Consorzio Agrario di Parma, Parma, Italy (15 participants)

Van Amburgh, M. E. 2007. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System, Standard Nutrition, Wisconsin (65 participants)

Van Amburgh, M.E. 2007. Calf and heifer nutrition and management. National Federation of Dairy Cooperative Associations and Zenrakuren. Tokyo, Japan. Seven sites throughout Japan. >1,000 participants.

Van Amburgh, M.E. 2007. Calf and heifer nutrition and management. Hoards Dairyman Mexico, Puerto Vallarta, Mexico (200 participants)

Van Amburgh, M. E. 2007. Calf and heifer nutrition and management. Delmarva Dairy Days. Delaware Extension Program, Harrington, DE. (50 participants)

Van Amburgh, ME. 2007. Developing progressive nutrition and management programs for calf and heifer growers. Summer Dairy Institute, Cornell University College of Veterinary Medicine. (30 participants).

Van Amburgh, M.E. and E. B. Recktenwald. 2006. Nitrogen efficiency in lactating dairy cattle. Proc. Cornell Nutrition Conf. Pp. 205-218. Syracuse, NY. (350 participants)

Van Amburgh, ME. 2006. Invited Speaker – Understanding mammary development in the pre-pubertal heifer and scientific roundtable discussions. University of British Columbia Animal Behavior and Research Unit – Official Opening (150 participants)

Van Amburgh, ME. 2006. Developing progressive nutrition and management programs for calf and heifer growers. Summer Dairy Institute, Cornell University College of Veterinary Medicine. (30 participants).

Van Amburgh, ME. 2006. Advanced Nutrition Training course, Cornell University Department of Animal Science. (100 participants)

Van Amburgh, ME. 2006. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Crema, Italy (30 participants)

Van Amburgh, ME. 2006. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Parma, Italy (35 participants)

Van Amburgh, ME. 2006. Dairy cattle nutrition training for the Cornell Net Carbohydrate and Protein System. Messina, Italy (15 participants)

Van Amburgh, ME. 2006. Forage digestibility and dairy cattle performance. University of Parma School of Veterinary Medicine, Parma, Italy (300 participants)

Van Amburgh, ME. 2006. Developing progressive nutrition and management programs for calf and heifer growers. Professional Dairy Heifer Growers Association Annual Meeting Proceedings, Visalia CA (500 participants)

Van Amburgh, ME. 2006. Forage digestibility – what should we expect from improved digestibility. Ruminant Health and Nutrition Conference, Syracuse NY and Manchester, NH (300 participants)

Van Amburgh, ME. 2006. Developing progressive nutrition and management programs for calf and heifer growers. Aguascalientes, Mexico (150 participants)

Van Amburgh, M. E. 2005. Calf and Heifer growth and management. Fall Dairy Conference. “Growing Your Assetsâ€. Pro-Dairy, Cornell University. Auburn, NY. 200 participants

Van Amburgh, M. E., T. R. Overton, L. E. Chase and E. B. Peterson. 2005. Protein requirements of lactating dairy cattle: a case study approach. Proc. Cornell Nutr. Conf. Pp. 213-221. Syracuse, NY. (350 participants from the U.S. and foreign countries.)

Van Soest, P.J., M. E. Van Amburgh, J. B Robertson, and W. F. Knaus. 2005. Validation of the 2.4 times lignin factor for ultimate extent of NDF digestion, and curve peeling rate of fermentation curves into pools. Proc. Cornell Nutr. Conf. Pp. 139 – 149. Syracuse, NY. (350 participants from the U.S. and foreign countries).

Lock, A. L., K. J. Harvatine, I. Ipharraguerre, M. Van Amburgh, J. K. Drackley and D. E. Bauman. 2005. The dynamics of fat digestion in lactating dairy cows: what does the literature tell us? Proc. Cornell Nutr. Conf. Pp. 83-94. Syracuse, NY. (350 participants from the U.S. and foreign countries).

Van Amburgh, M. E. 2005. Mammary development, calf nutrition and future production. World Dairy Expo Seminar, Madison, WI. Oct. 6th. 200 people. (Invited)

Van Amburgh, M. E. 2005. The Replacement heifer from birth to Calving: part II.Pre conference symposium for American Association of Bovine Practitioners. Salt Lake City, Utah. Sept. 20-21st. 30 participants.

Van Amburgh, M.E. 2005. Dairy One Cooperative – science update – what’s new with the CNCPS and forage chemistry. Sept. 28th, Ithaca, NY

Bell, A. W. and M. E. Van Amburgh. 2005. Pregnancy and Post-Natal Requirements. 11th Annual Discover Conference on Food Animal Agriculture: Amino Acid Requirements of Dairy Cows. Presented part of the section on post-natal amino acid requirements for growth. (Invited) ~120 participants

Van Amburgh, M. E. 2005. Nutrition of the Dairy Cow Workshop Series. CoRFiLaC. June 5-11. Ragusa, Sicily. 100 participants from Italy and Europe. (Invited)

Van Amburgh, M. E. and M. J. Meyers. 2005. Mammary development and milk yield potential. Professional Heifer Growers Association National Meeting. Sioux Falls, SD. (Invited) 200 participants.

Van Amburgh, M. E. 2005. Coordinated a round-table discussion of calf raisers from around the country – presented twice. Western Dairy Management Conf., Reno, NV. ~2,000 conference participants. (Invited)

Drackley, J. K. and M. E. Van Amburgh. 2005. Nutrient requirements of the calf: Birth to weaning. Proc. Dairy Calves and Heifers Conference. Pp. 86-95. Syracuse, NY. Natural Resource, Agriculture and Engineering Service (NRAES) Publication 175, Cooperative Ext. Ithaca, NY. 300 participants

Van Amburgh, M. E. and M. J. Meyers. 2005. Target growth and nutrient requirements of post-weaned dairy heifers. Proc. Dairy Calves and Heifers Conference. Pp. 128-138. Syracuse, NY. Natural Resource, Agriculture and Engineering Service (NRAES) Publication 175, Cooperative Ext. Ithaca, NY. 300 participants

Meyers, M. J. and M. E. Van Amburgh. 2005. Exploring the link between prepubertal mammary development and future milk yield. Proc. Dairy Calves and Heifers Conference. Pp. 54-65. Syracuse, NY. Natural Resource, Agriculture and Engineering Service (NRAES) Publication 175, Cooperative Ext. Ithaca, NY. 300 participants

Van Amburgh, M. E. 2005. Calf and heifer nutrition, management and biology lectures and workshops in Japan. January 8 – 18. Over 1,000 participants. Nutrition professionals, dairy farmers, academics in 8 locations around the country. (Invited)

Van Amburgh, M.E. 2005. Winter Dairy Management Series. “Internal Herd Growth†Richfield Springs, Cortland, February to March. Dairy Extension Meetings. Speaker. >300 participants.

Meyer, M.J., R.W. Everett, and M.E. Van Amburgh. 2004. Reduced age at first calving: Effects on lifetime production, longevity, and profitability. Proc of 3rd Annual Arizona Dairy Producers Conference. Pp. 41-55.

Tempe, AZ Meyer, M.J., R.W. Everett, and M.E. Van Amburgh. 2004. Reduced age at first calving: Effects on lifetime production, longevity, and profitability. Proc of Kansas Dairy Producers Conference. Pp. 41-55. Two locations in Kansas.

Meyer, M.J., A.V. Capuco, D.A. Ross, A. Hummel, and M.E. Van Amburgh. 2004. Prepubertal Mammary Development in the Bovine: Influence of Nutrition and Age at Puberty. Proc. Cornell Nutr. Conf. Pp. 77-96. Syracuse, NY.

Van Amburgh, M.E., J.B. Robertson, E. B Peterson, and R. J. Grant. 2004. Corn Silage: Rates, Extents and Integration. Proc. Cornell Nutr. Conf. Pp. 1-9. Syracuse, NY.

Van Amburgh, M.E. and E. B. Peterson. 2004. How much nitrogen can a cow recycle? Proc. Cornell Nutr. Conf. Pp. 179-188. Syracuse, NY.

Meyer, M.J., D.A. Ross, D.E. Shaw, and M.E. Van Amburgh. 2004. Effect of elevated nutrient intake initiated early in life on components of gain in Holstein heifers. Alltech Conference, Lexington, KY. Poster presentation.

Van Amburgh, M.E. 2004. Integrating calf and heifer requirements with herd management and target growth. Proc. Mid-South Nutr. Conf. Arlington, TX

Van Amburgh, M.E. and J. K. Drackley. 2004. Current perspectives on the nutrient requirements of preweaned calves. Proc. Easter School, Univ. of Nottingham, England

Van Amburgh, M.E. 2004. Intensive feeding, target growth lactation milk yield and economics of heifers. Proc. 8th National Dairy Calf and Heifer Conf., Roanoke, VA.

Van Amburgh, M. E. 2004. Integrating calf and heifer requirements with herd management and target growth. January. UK Milk Development Council, Seminar Series, Melton Mowbray, England

Van Amburgh, M. E. 2004. Integrating calf and heifer requirements with herd management and target growth. January. UK Milk Development Council, Seminar Series, Caernarfon, Gwynedd, Wales

Van Amburgh, M. E. 2004. Integrating calf and heifer requirements with herd management and target growth. January. UK Milk Development Council, Seminar Series, Hereford, England

Van Amburgh, M. E. 2004. Integrating calf and heifer requirements with herd management and target growth. January. UK Milk Development Council, Seminar Series, Welshpool, England

Van Amburgh, M. E. 2004. Integrating calf and heifer requirements with herd management and target growth. January. UK Milk Development Council, Seminar Series, Diss, England

Van Amburgh, M.E., P.J. Van Soest, J. B. Robertson and W. F. Knaus. 2003. Corn silage neutral detergent fiber: refining a mathematical approach for in vitro rate of digestion. Pp. 99-108. Proc. Cornell Nutrition Conf., Syracuse, NY.

Van Amburgh, M. E. 2003. Young Dairy Calf Management – Seminar 4. Co-instructor. American Association of Bovine Practioners Meeting. Columbus, OH.

Van Amburgh, M. E. 2003. Nutrition of the Dairy Cow Workshop Series. CoRFiLaC June 1-6. Ragusa, Sicily

Van Amburgh, M.E. 2003. Growth and Development of Calves. Western Dairy Management Conference, Reno, CA.

Van Amburgh, M.E. 2003. Nutrient Requirements of Calves. Southwest Nutrition Conference, Phoenix, AZ.

Van Amburgh, M.E. 2003. Growth and Development of Calves. Tulare Farm Show, Tulare, CA.

Van Amburgh, M. E. 2003. Integrating calf and heifer requirements with herd management and target growth. March. Royal Agricultural College. Cirencester, England

Van Amburgh, M. E. 2003. Integrating calf and heifer requirements with herd management and target growth. March. UK Milk Development Council Seminar Series, Worcester, England

Van Amburgh, M. E. 2003. Integrating calf and heifer requirements with herd management and target growth. March. Straights Feeders Group Dairy Consortium, Worcester, England

Van Amburgh, M.E. 2002. A systematic approach to heifer nutrition and management: The target growth system. Winter Dairy Management Meetings. Cornell Cooperative Extension. Saratoga, NY.

Van Amburgh, M.E. 2002. A systematic approach to heifer nutrition and management: The target growth system. Winter Dairy Management Meetings. Cornell Cooperative Extension. Chazy, NY.

Van Amburgh, M.E. 2002. A systematic approach to heifer nutrition and management: The target growth system. Winter Dairy Management Meetings. Cornell Cooperative Extension. Watertown, NY.

Van Amburgh, M.E. 2002. Growth and development of calves. Seminar, South Dakota State University, Brookings, South Dakota. Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Lincoln, Nebraska.

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Madison, WI.

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Winona, MN.

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Rochester, MN

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Guelph, Ontario, Canada.

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Woodstock, Ontario, Canada.

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Listowel, Ontario, Canada.

Van Amburgh, M.E. 2002. Growth and development of calves. LOL Calf Seminar. Formosa, Ontario, Canada

Van Amburgh, M. E. 2002. Calf and heifer management strategies. Inservice for Dairy Agents, Cornell Cooperative Extension/Pro-Dairy.

Van Amburgh, M.E. 2002. A systematic approach to heifer nutrition and management: The target growth system. Advanced Dairy Nutrition Training Course for Agribusiness Professionals. Ithaca, NY.

Van Amburgh, M.E. 2002. The calculation of metabolizable energy and protein supply in the Cornell Net Carbohydrate and Protein System – effects of forage digestibility and rates. Advanced Dairy Nutrition Training Course for Agribusiness Professionals. Ithaca, NY.

Smith, J. M. and M. E. VanAmburgh. 2002. Effect of feeding conjugated linoleic acid and other fatty acids during the prepubertal period on the composition of growth and lactation yield of Holstein heifers. Pp. 159-173. Proc. Cornell Nutr. Conf.

Van Amburgh, M.E. 2002. Nutrition and management of calf and heifer programs. Summer Session Class for students at Miner Institute, Chazy, NY.

Van Amburgh, M.E. 2002. Nutrient requirements of calves and heifers, and a systematic approach to heifer nutrition and management: the target growth system. Pro-Dairy Australia, Warragul, Australia

Van Amburgh, M.E. 2002. Nutrient requirements of calves and heifers, and a systematic approach to heifer nutrition and management: the target growth system. Pro-Dairy Australia, Warrnambool, Australia

Van Amburgh, M.E. 2002. Nutrient requirements of calves and heifers, and a systematic approach to heifer nutrition and management: the target growth system. Pro-Dairy Australia, Shepparton, Australia

Van Amburgh, M.E. 2002. Nutrient requirements of calves and heifers, and a systematic approach to heifer nutrition and management: the target growth system. Pro-Dairy Australia, Beaudesert, Australia

Marini, J. C. and M. E. Van Amburgh. 2001 Effect of dietary protein intake on nitrogen metabolism of Holstein heifers. Pp. 198-208. Proc. Cornell Nutr. Conf.

Van Amburgh, M.E., J.N Tikofsky, L.O. Tedeschi, J.M. Smith and J.K. Drackley. 2001. Requirements for growth of Holstein calves and evaluation of current feeding systems. Pp. 46-55. Proc. Cornell Nutr. Conf.

Van Amburgh, M., J. Tikofsky and J. Smith. 2001. Requirements for and Regulation of Growth of Holstein Calves. Pp. 11-30. Renaissance Nutrition Conference, Bucknell University. July, 2001.

Lewisburg, PAVan Amburgh, M., J. Tikofsky, and J. Smith. 2001. Requirements for and Regulation of Growth of Holstein Calves – Implications for Decreasing Age at First Calving. Pp 113-132. Proceedings Tri-State Nutrition Conference, Ft. Wayne, IN.

Van Amburgh, M. and J. Tikofsky. 2001. The Advantages of “Accelerated Growth†in Heifer Rearing. Pp. 79- 97. Proceedings of the Western Canadian Dairy Seminar, Red Deer, Alberta, Canada, March 13-16th. Univ. of Alberta, Dept. of Animal Science

Fox, D. G., T. P. Tylutki, K. J. Czymmek, M. E. Van Amburgh, C.N. Rasmussen, and V. M. Durbal. 2001. Nutrient Management on Dairy farms – Development and application of the Cornell University Nutrient Management Planning System – a Case Study. Pp. 283-294. Proceedings of the Western Canadian Dairy Seminar, Red Deer, Alberta, Canada, March 13-16th. Univ. of Alberta, Dept. of Animal Science. (presented paper)

Van Amburgh, M., J. Tikofsky and J. Smith. 2001. Requirements for and Regulation of Growth of Holstein Calves. Pp. 1-13. Proceedings Ruminant Health Conference, Syracuse, NY. NY State Veterinary Medical Society.

Van Amburgh, M., J. Tikofsky and J. Smith. 2001. Requirements for and Regulation of Growth of Holstein Calves. Proceedings Winter Dairy Management Meetings. Animal Science Mimeo.

Van Amburgh, M., J. Tikofsky and J. Smith. 2001. Requirements for and Regulation of Growth of Holstein Calves. Proceedings Virginia State Feed Manufacturers Annual Meeting. Williamsburg, VA.

Tikofsky, J.N. and M. E. Van Amburgh. 2000. Effect of varying carbohydrate and fat content of the diet on body composition of milk fed calves. Pp. 239-250. Proc. Cornell Nutr. Conf.

Van Soest, P. J., M. E. Van Amburgh, L. Tedschi. 2000. The problem of declining rate of cell wall degradation with time. Pp. 150-166. Proc. Cornell Nutr. Conf.

Boisclair, Y. R., R. A. Ehrhardt, S. S. Block, R. M. Slepetis, M. E. Van Amburgh and A. W. Bell. 2000. What is leptin and what role might it play in ruminant metabolism? Pp. 72-80. Proc. Cornell Nutr. Conf.

Van Amburgh, M.E. 2000. Nutrition and management of calf and heifer programs. Summer Session Class for students at Miner Institute, Chazy, NY.

Van Amburgh, M. E., J. E. Voorhees, and J. B. Robertson. 1999. Total dietary fiber content of selected ruminant feeds. Pp. 196-202. Proc. Cornell Nutr. Conf., Rochester, NY.

Diaz, M. C., J. M. Smith and M.E. Van Amburgh. 1998. Nutrient requirements and management of the milk fed calf. Pp. 130-141. Proc. Cornell Nutr. Conf., Rochester, NY.

Smith, J. M., M. C. Diaz, M. E. Van Amburgh, D. E. Bauman and M. C. Lucy. 1998. Ontogeny of the somatotropic axis in milk-fed bull calves between birth and 105 kg. Pp. 119-129. Proc. Cornell Nutr. Conf., Rochester, NY.

Fox, D.G., Chase, L.E., Pell, A.N., Pitt, R.E., and Van Amburgh, M.E. 1998. The Cornell Net Carbohydrate and Protein System: a model to predict cattle nutrient requirements under widely varying conditions. Conference on Interdisciplinary Modeling. Banff, Canada.

Van Amburgh, M. E. 1998. Nutrient requirements and mammary development of the dairy heifer. Heifer Management Conference. Syracuse, NY. Sponsored by Cargill, Inc.

Van Amburgh, M. E. 1998. Accelerated heifer growth: Nutrient requirements and effects on lactation and profitability. Continuing Education Program. Cornell University Veterinary School Annual Meeting.

Van Amburgh, M. E. 1998. Accelerated heifer growth: Nutrient requirements and effects on lactation and profitability. Proceedings of the Maryland Nutrition Conference for Feed Manufacturers, Baltimore, MD.

Van Amburgh, M.E. 1998. Accelerated heifer growth: Nutrient requirements and effects on lactation and profitability. Proceedings of the Southwest Nutrition & Management Conference, Phoenix, AZ.

Van Amburgh, M. E. 1998. Development of nutrient requirements for the young dairy heifer. Western NY Calf Growers. Batavia, NY.

Van Amburgh, M. E. 1998. Why New York dairy students are interested in the Italian cheese manufacturing process and how they may find application in the Northeast U.S. University of Catania, Ragusa, Sicily, Italy.

Van Amburgh, M.E. 1997. Nutrition and Development of the Dairy Heifer. Protiva Science Symposium, New Orleans, LA.

Van Amburgh, M.E. 1997. Use of the Cornell Net Carbohydrate and Protein System for developing rations for optimum growth of Holstein heifers. Proceedings Western Section ARPAS Continuing Education Seminar. Harris Ranch, CA.

Van Amburgh, M.E. 1997. Efffect of ionophores on growth and lactation in cattle. Proceedings of Cornell Nutrition Conference. Pp.

Galton, D.M., R.W. Everett, M.E. Van Amburgh, D.E. Bauman, and W.A. Knoblauch. 1997. Extended calving intervals with use of bST. Proceedings Western Dairy Management Conference, Las Vegas, NV.

Van Amburgh, M. E., Galton, D. M., Everett, R. W., Bauman, D. E., and Knoblauch, W. A. 1997. Extended calving intervals with the use of bST. Proceedings of Mid-Atlantic Dairy Conference, Thriving in a Global Economy. pp. 95-101.

Van Amburgh, M.E., Galton, D. M., Everett, R. W., Bauman, D. E., 1996. Extended calving intervals with use of bST. Protiva Science Symposium, South Padre Island, TX.

Van Amburgh, M.E. 1996. Nutrition and age at first calving. Renaissance Nutrition Conference, Bucknell University. Lewisburg, PA

Galton, D. M., Bauman, D. E., Van Amburgh, M. E., and Everett, R. W. 1996. Management and Economics of Extended Calving Interval Using bST. Proceedings of the Northeast Dairy Producers Conference. Rochester, NY. Animal Science Mimeo No. 185.

Van Amburgh, M. E. 1996. Profitability of accelerated heifer growth. Proceedings of the Northeast Dairy Producers Conference, Rochester, NY. Animal Science Mimeo No. 185.

Van Amburgh, M.E. 1996. The Future of Northeast Dairy Farming: Alternatives for handling higher grain prices. Northeast Agribusiness Seminar. New York State Bankers Association. Ithaca, NY.

Van Amburgh, M. E., and Fox, D. G. 1996. Using the Cornell Model to Predict Nutrient Requirements, Performance, and Cost for Dairy Heifers. Calves, Heifers and Dairy Profitability, National Conference. Harrisburg, PA. NRAES-74.

Van Amburgh, M. E., and Galton, D. M. 1995. Accelerated growth of Holstein heifers – Effects on lactation. Ontario Dairy Symposium. Dairy Innovations ‘ 95. Toronto, Ontario, Canada.

Van Amburgh, M. E. 1995. Heifer growth and development. 95th Penn Annual Conference. School of Veterinary Medicine, University of Pennsylvania. Philadelphia, PA.

Van Amburgh, M. E. 1995. Optimizing heifer growth – Calving at 21 months. North East Ohio Ag Expo ’95. Ohio State University Extension. Columbiana County. Beloit, Ohio.

Van Amburgh, M. E. 1995. Heifer nutrition: Ration and feeding management to achieve maximum productive capacity. Dairy Day 1995. Cornell Cooperative Extension. Schoharie Co. Cobleskill, NY.

Van Amburgh, M. E. and Galton, D. M. 1994. Accelerated growth of Holstein heifers – Effects on lactation. Proceedings Cornell Nutrition Conference. Pp. 147-154.

Van Amburgh, M. E. and Galton, D. M. 1994. Growth and Nutrition of Heifers. Proceedings Dairy Management Conference, Michigan State University Extension Publication. Pp. 39-65.

Fox, D.G., M.C. Barry and M.E. Van Amburgh. 1993. Meeting amino acid requirements of growing cattle with the Cornell Net Carbohydrate and Protein System. Proc. Cornell Nutrition Conference. Pp. 44- 55.

EXTENSION PUBLICATIONS:

Fox, D.G., Tylutki, T.P, Tedeschi, L.O., Van Amburgh, M. E., Chase, L. E., Pell, A. P., Overton, T. R., and Russell, J. B. 2003. The Net Carbohydrate and Protein System for Evaluating Herd Nutrition and Nutrient Excretion: Model Documentation. Mimeo 213. Department of Animal Science, Cornell University, Ithaca, NY

Fox, D. G., T. P. Tylutki, M. E. Van Amburgh, L. E. Chase, A.N. Pell, T. R. Overton, L.O. Tedeschi, C. N. Rassmussen and V. J. Durbal. 2000. The Cornell University Nutrient Management Planning System: The Net Carbohydrate and Protein System for evaluating herd nutrition and nutrient excretion. CNCPS version 4.0. Animal Science Department Mimeo 213.

Fox, D.G., Van Amburgh, M.E., Barry, M.C., Tylutki, T.P., and Perry, T. 1996. Cornell Cattle Systems 5, Rations, Projections and Evaluation. Cattle growth and prediction model for all classes of growing cattle. Department of Animal Science, Cornell University.

Fox, D.G., Van Amburgh, M.E., Barry, M.C., Tylutki, T.P., and Perry, T., Rayburn, E., Traxler, M., Ainslie, S., and Roseler, D. 1994. Cornell Cattle Systems 4, Rations, Projections and Evaluation. Cattle growth and prediction model for all classes of growing cattle. Department of Animal Science, Cornell University.