The Dairy Nutrition Blackbelt Podcast - Dr. Alexander Hristov: Rumen Methanogenesis and Mitigation Options | Ep. 155

In this episode of The Dairy Nutrition Blackbelt Podcast, Dr. Alexander Hristov, Distinguished Professor of Dairy Nutrition at Penn State, discusses rumen methane formation and practical mitigation strategies for dairy cattle. He explains how fiber, starch, diet formulation, and feed additives influence hydrogen flow in the rumen, why production trade-offs matter, and why producers should evaluate methane-reduction claims through independent science. Listen now on all major platforms!

What you'll learn:  

• Methane formation
• Fiber impact
• Starch trade-offs
• Feed additive evidence
• Approval process

Meet the guest:

Dr. Alexander Hristov is a Distinguished Professor of Dairy Nutrition in the Department of Animal Science at Penn State. He earned his Ph.D. in Animal Nutrition in Bulgaria and has worked with USDA-ARS, Ag Canada, the University of Idaho, and Penn State. His research focuses on dairy cattle protein and amino acid nutrition, nutrient losses, and gaseous emissions. He has given over 120 invited presentations and published over 230 books, book chapters, and peer-reviewed journal articles. Learn more from Dr. Alexander Hristov on The Dairy Nutrition Blackbelt Podcast, available on all major platforms. 

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