Dr. Luiz Ferraretto is an Assistant Professor and Extension Specialist in Ruminant Nutrition at the University of Wisconsin–Madison. Originally from Brazil, he earned his B.S. in Animal Science from São Paulo State University before completing his M.S. and Ph.D. in Dairy Science at UW–Madison. His work focuses on applied dairy nutrition, with emphasis on starch and fiber utilization, corn silage quality, byproduct feeds, and feed additives for lactating cows. Dr. Ferraretto combines research and fieldwork to help dairy producers improve forage use and feeding strategies through science-based, practical solutions.

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 at the University of Georgia. He holds a B.S. and M.S. in Animal and Dairy Science from UGA and a Ph.D. in Microbiology from Cornell University. Before returning to academia, he spent 18 years as a research scientist with USDA-ARS. His work focuses on how the gut microbiota influences cattle nutrition, food safety, and production efficiency. An award-winning researcher and active leader in scientific publishing and professional organizations, Dr. Callaway brings deep expertise to the intersection of microbiology and ruminant nutrition.