Abstract #10

# 10
Mini-symposium on Discover 34—Re-examining amino acid and energy interactions in the dairy cow.
G. A. Broderick1, J. A. Metcalf*2, J. L. Firkins3, L. R. Miller4, 1Broderick Nutrition & Research LLC, Madison, WI, 2Trouw Nutrition Agresearch, Guelph, ON, Canada, 3The Ohio State University, Columbus, OH, 4ADSA Discover Conference Series, Centreville, MD.

The 34th ADSA Discover Conference (DC34), “Reexamining Amino Acid and Energy Interactions in the Dairy Cow,” was held May 29 to June 1, 2018. The meeting addressed the following themes: (1) pre-absorptive interactions: where protein and energy first interact; (2) post-absorptive interactions: where cows get stuff to make milk; (3) changes in energy and AA interactions over the lactation cycle; (4) translating dynamic elements of nutrient metabolism into feeding systems; and (5) research gaps and urgent needs for the dairy industry. At the meeting wrap-up, conference organizers summarized the challenges and recommendations from the 3-d conference to help focus ongoing and future research to improve the efficiency of amino acid utilization in lactating dairy cows. This mini-symposium summarizes the findings presented at DC34 and discusses strategies to implement future research related to amino acid and energy interactions. All members, whether or not they attended DC34, are encouraged to participate. The ADSA Discover conferences address important contemporary issues in food animal agriculture and are organized to provide unique opportunities for professional interactions that facilitate development and use of frontier science for the benefit of the global food industries and society. The conferences offer an environment that fosters creativity, emphasizes interaction and open discussion, and focuses on thrusts that will synergize the development and application of science. This mini-symposium is an example of conference follow-up by the Discover program to further enhance conference discussions, recommendations, and networking.

Key Words: amino acid nutrition, energy nutrition, nutrient interactions

Speaker Bio
Glen Broderick is retired from the USDA-Agricultural Research Service and an Emeritus Professor at the University of Wisconsin. After receiving his PhD (1972) degree as a joint major in Biochemistry and Dairy Science at the University of Wisconsin-Madison, Glen served as assistant and associate professor of Animal Science at Texas A&M University in College Station from 1972 to 1980. In January 1981, he returned to Madison to work as Research Scientist at the U.S. Dairy Forage Research Center and professor of Dairy Science at the University of Wisconsin. His research focused on protein nutrition of the lactating dairy cow with emphasis on enhancing utilization of feed nitrogen for milk production. This work has involved developing strategies to minimize dietary crude protein without losing milk or protein yield, identifying factors influencing microbial protein formation in the rumen, and perfecting methodology for quantifying ruminal protein degradation and escape. Glen’s research has generated over 145 peer-reviewed publications. In addition to teaching and mentoring graduate students at Wisconsin and other universities, he has served on the editorial boards of several journals and continues to review papers and make invited presentations at national and international meetings. Glen did sabbaticals at the Rowett Research Institute in Aberdeen, Scotland (1985-6) plus the Swedish Agricultural University in Uppsala (1997-8; 2013). He received an honorary doctorate from the Swedish Agricultural University in 2016. According to the Web of Science, Dr. Broderick’s research articles have been cited over 5,600 times in more than 3,500 articles with an average of over 40 citations per article and 122 citations per year.