Luiz Ferraretto is originally from Brazil where he earned his B.S. in Animal Science from São Paulo State University in 2008. Immediately after the completion of his B.S. Degree, Luiz joined the University of Wisconsin-Madison for an internship (2009) followed by an M.S. (2011) and Ph.D. (2015) in dairy science with a focus on applied dairy nutrition and forage quality. After the completion of his Ph.D., Luiz joined The William H. Miner Agricultural Research Institute as a Post-doctoral Research Associate. From 2016 to 2020, Luiz was an Assistant Professor of Livestock Nutrition at the University of Florida. Luiz joined UW-Madison in May of 2020. His research and extension interests are applied ruminant nutrition and management. His program is focused on understanding and improving starch and fiber utilization by dairy cows, corn silage and high-moisture corn quality and digestibility, the use of alternative by-products as feed ingredients, supplementation of feed additives to lactating cows, and the development of on-farm and laboratory techniques for forage and feed analysis.

Dr. Rick Lundquist is a partner in Nutrition Professionals, Inc., a dairy nutrition and management consulting practice with offices in Florida and Minnesota. He earned his Ph.D. in Dairy Nutrition and Ruminant Physiology from the University of Minnesota and began his consulting career in Arizona. With over 30 years of experience, Dr. Lundquist has worked with dairies across the United States, with particular emphasis in the Southeast. Through Nutrition Professionals, Inc. and their colleagues at GPS Dairy Consulting, LLC, he provides expert consulting services both nationally and internationally. His work focuses on delivering practical, science-based guidance to support productivity and efficiency in dairy operations.

Dr. Todd Callaway is a Professor of Ruminant Nutrition and Gastrointestinal Microbiology in the Department of Animal and Dairy Science at the University of Georgia. He received his B.S. and M.S. in Animal and Dairy Science from the University of Georgia and his Ph.D. in Microbiology from Cornell University. Dr. Callaway joined the Agricultural Research Service of the USDA (USDA-ARS) in the Food and Feed Safety Research Unit in College Station, Texas, where he worked for 18 years. His research focuses on the role of the gut microbiota in cattle nutrition and how the complex environment of the cattle gastrointestinal tract can impact food safety and production efficiency. Dr. Callaway received the 2007 ASAS Early Career Research Award, the USDA/ARS Early Career Research Award, and the 2023 American Feed Industry Association/ASAS Ruminant Nutrition Research Award. In addition to his research, Dr. Callaway is Editor-in-Chief of the journal Foodborne Pathogens and Disease, serves on the steering committee for the American Dairy Science Association Discover conferences, and is a Director-at-Large for the American Society of Animal Science.