November 2020 - Dr. Alexander Hristov (Penn State) - Effective Ways of Decreasing Enteric Methane Emission in Lactating Dairy Cows

February 12, 2021

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Dr. Alex Hristov is a Distinguished Professor of Dairy Nutrition in the Department of Animal Science at The Pennsylvania State University and is a member of several professional societies and of the Feed Composition Committee of the National Animal Nutrition Program. He has a Ph.D. in Animal Nutrition from the Bulgarian Academy of Agricultural Sciences and has worked as a research scientist in his native Bulgaria, USDA-ARS Dairy Forage Research Center in Madison, WI, and the Ag Canada Research Center in Lethbridge, AB. He was on the faculty at the Department of Animal and Veterinary Science, University of Idaho from 1999 to 2008 and is at Penn State since 2008. Hristov’s main research interests are in the areas of protein/amino acid nutrition of dairy cattle and mitigation of nutrient losses and gaseous emissions from dairy operations. He is currently the Chair of the Network on Feed and Nutrition in Relation to Greenhouse gas Emissions, which is an activity of the Livestock Research Group within the Global Research Alliance on Agricultural Greenhouse Gases and is on the Scientific Advisory Board of the European Joint Programming Initiative on Agriculture, Food Security and Climate Change (FACCE-JPI). Dr. Hristov initiated and led the development of the world’s first Dairy MOOC (Massive Open Online Course) with a currently enrollment of over 28,000 ( He has given over 70 invited presentations and published over 170 books, book chapters, and peer-reviewed journal articles.

Webinar Overview:

Dr. Hristov will give a general overview of livestock emissions in the US, talk about criteria products claiming enteric methane mitigation effect should meet, summarize what has been tested, what works and what doesn't, and talk about future directions.

How should products be tested for enteric methane mitigating effect?

What works and what doesn't.