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Welcome Our New Faculty Members

Posted: February 5, 2008

Dr. Alex Hristov, Associate Professor of Dairy Nutrition, and Dr. Joy Pate, Professor of Reproductive Physiology and the C. Lee Rumberger and Family Endowed Chair in Agricultural Sciences

Alex HristovDr. Alex Hristov recently joined the faculty as an Associate Professor of Dairy Nutrition in the Department of Dairy and Animal Science. Alex, a native of Bulgaria, has a Masters degree in Dairy Technology and a Ph.D. in Animal Nutrition from the Bulgarian Academy of Agricultural Sciences.

His career started as a Research Scientist with the Institute of Animal Sciences in Kostinbrod, Bulgaria and includes a couple of years as a visiting scientist with the US Dairy Forage Research Center in Madison, WI, 5 years as a Research Scientist with Agriculture and Agrifood Canada’s Lethbridge Research Center, and 8 years on the faculty at the Department of Animal and Veterinary Sciences, University of Idaho. His position with Penn State is 75 percent research and 25 percent teaching.

Alex’s field of expertise is ruminant/dairy nutrition. His research focus is on nitrogen metabolism and transformations of feed nitrogen in the rumen and how nutrition affects the efficiency of utilization of environmentally important nutrients, such as nitrogen and phosphorus. Alex’s research has been funded by USDA, dairy and other commodity organizations grants. He will be teaching an undergraduate course in Animal Nutrition and a graduate course in Ruminant Nutrition. Alex is married with 3 children. Fishing and hunting are his favorite pastime activities.

Joy PateDr. Joy L. Pate grew up in southern New Jersey – the part of the state that gives it the name "The Garden State." This rural part of the state is known for extensive vegetable crops and at the time there were numerous dairy farms, one of which employed Joy as a milker and caretaker of the calves. In fact, a dairy farm near her parent’s house is still famous for stopping traffic two times per day when the cows move from the pasture to the parlor!

Joy attended the University of Delaware where she received a B.S. in Animal Science, then moved on to the University of New Hampshire, receiving her Ph.D. in Reproductive Physiology in 1983. She joined the faculty at The Ohio State University, Department of Dairy Science, in 1983, where she has served until 2008 and was promoted through the ranks to Professor. She was the second woman faculty member in the College of Agriculture at OSU, the first in Dairy or Animal Sciences, and the first to be promoted to Professor in the college.

She spent 14 years on the Columbus campus, then moved to the Wooster experiment station campus, OARDC, where she has spent the last 10 years. During that time, she served a term as Associate Chair of the Department of Animal Sciences (the departments of Dairy Science and Animal Science merged in 1996). Joy’s research is in the area of ovarian function of dairy cattle, with particular emphasis on the biology of the corpus luteum (CL). She employs cellular and molecular techniques to understand what makes that fascinating CL ‘tick’!

Along the way, she discovered that luteal cells are capable of interacting in very interesting ways with immune cells. She envisions the development of a world class program in reproductive immunology of domestic animals at Penn State. Her research has received funding from NIH, USDA, BARD and industry. Joy is Professor of Reproductive Physiology and the C. Lee Rumberger and Family Endowed Chair in Agricultural Sciences. Her appointment is 75 percent research and 25 percent teaching. Joy is married to her husband-scientist of 10 years, Dr. Bruce Sherf, and they have two Standard Schnauzers, Neo and Ripley, and a cat, Chenille. In her spare time, Joy enjoys spinning and weaving, outdoor activities and an occasional dog show.