Golden State Dairy Management
Golden State Dairy Management
Golden State Dairy Management
University of California
Golden State Dairy Management

Speaker Bios


Dr. Ed DePeters is a Professor of Animal Science at UC Davis and Dairy Nutritionist.  His research interests include ruminant nutrition of dairy cattle, mammary gland synthesis of milk protein and fat, nutrient digestion, absorption, and metabolism, evaluation of by-product feedstuffs and forage quality.  Dr. DePeters has received numerous awards for his dairy cattle nutrition research and many awards for his teaching, including the UC Davis Teaching Prize.  He teaches Dairy Cattle Production and Animal Feeds and Nutrition. 

Dr. Ermias Kebreab is a Professor of Animal Science at UC Davis. His research many interests include estimating greenhouse gas emissions in agriculture, modelling emissions mitigation opportunitites from animals, manure and soil and modeling animal production systems to understand environmental sustainability.  He teaches Animal Enterprise Analysis, Sustainable Animal Agriculture and Mathermatical Modeling in Biological Systems.

Jennifer Heguy, UC Cooperative Extension Farm Advisor, conducts applied research and extension programming to improve production efficiencies on California dairy farms. Trained in ruminant nutrition, Jennifer’s main program focus is to improve feeding management practices on California dairies.



Dr. Alison VanEenennaam is a Cooperative Extension Specialist in the field of Animal Genomics and Biotechnology in the Department of Animal Science at University of California, Davis.  Her research and outreach program focuses on the use of animal genomics and biotechnology in livestock production systems. Current research projects include the development of genomic approaches to select for cattle that are less susceptible to disease and the development of genome editing approaches for livestock. She uses a variety of media to inform general public audiences about science and technology.

Betsy Karle received her B.S from the University of California, Davis in 1999. In 2003, she received her M.S. degree at UC Davis, focusing on livestock and water quality issues. She worked as a Post Graduate Researcher at the UC Davis Veterinary Medicine Teaching and Research Center in Tulare and as a Junior Specialist in the Animal Science Department at UC Davis before starting her career with Cooperative Extension. Betsy’s UCCE program focuses on all issues of importance to dairies in the northern Sacramento Valley, with a special emphasis on animal health and disease management, especially in dairy calves.


Dr. Richard Pereira is an Assistant Professor of Clinical Livestock Herd Health at UC Davis, providing in-house and ambulatory veterinary herd health and reproduction services to dairy farm, ranches and breeding operations. His research interest is on antimicrobial resistant and zoonotic bacteria in livestock and herd health, with the aim of developing effective and feasible interventions to reduce and prevent the spread of disease and drug resistance.



Dr. Stephen Kaffka is an Extension Specialist in the Department of Plant Sciences at UC Davis.  He has statewide responsibilities for sugar and oilseed crops, bioenergy and biofuels, and works broadly on issues of agricultural sustainability and the efficiency of cropping systems in California.  His most recent work focuses on alternative uses of sugar and oilseed crops in diary systems, IPM practices for sugar beets, and new opportunities for biofuel feedstock production in California.

Dr. Bob Hutmacher is a Cooperative Extension Specialist / Agronomy Research Scientist with the UC Davis Plant Sciences Department and Director of the West Side Research and Extension Center.  His research has focused on various aspects of cotton production and management issues including water and nutrient management, stress responses, and screening and breeding for disease resistance, but his work extends also to forage and grain sorghums, industrial hemp, and biofuel crops such as switchgrass and sweet sorghum.

Dr. Helen E. Dahlke is an Associate Professor in Integrated Hydrologic Sciences at the University of California, Davis. Helen's current research interests include surface water – groundwater interaction, water resources management, vadose zone transport processes, and applications of DNA nanotechnology in hydrology. One of her main research efforts focuses on testing the feasibility of using agricultural fields as recharge sites for groundwater banking. 



Dr. Deanne Meyer serves as UC Cooperative Extension Specialist and Research Scientist for the University of California, Davis in the Department of Animal Science and UC Agriculture and Natural Resources. Deanne helps dairy farmers improve their environmental footprint by conducting research related to nutrient flow and management on dairy farms. She translates her findings and those of other scientists to dairy operators to inform innovative transformations. Also, she provides current scientific information to policy makers.

Nicholas Clark is an Agronomy & Nutrient Management Farm Advisor in Tulare, Kings, and Fresno Counties, where milk and the forage to produce it are major agricultural commodities. Nicholas’ program focuses on improving crop nutrient use efficiency and promoting economically feasible pest management practices in dairy forages.

Dr. Khaled Bali is the Irrigation Water Management Specialist for UC Cooperative Extension. He is housed at the University of California Kearney Agricultural Research and Extension Center in Parlier, CA. Dr. Bali is responsible for designing, implementing, and conducting educational and applied research programs in irrigation, drainage, water management, water quality, soil salinity, waste management, reuse of wastewater for irrigation and nonpoint source pollution control practices.

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