Encourages creative and innovative thinking.
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Sergio Arispe serves as an Associate Professor in the Department of Animal and Rangeland Sciences within Oregon State University's College of Agricultural Sciences. He also holds the position of Livestock and Rangeland Extension field faculty specialist in Malheur County. Arispe obtained his Ph.D. in Animal Biology from the University of California, Davis in 2012, a Master of Science in Agricultural Education from Texas A&M University in 2003, and a Bachelor of Science in Animal Science from Texas A&M University-Kingsville in 2001. Since joining the Oregon State University Extension Service in 2014, he has focused his career on bridging research and practical application for rangeland and livestock management in eastern Oregon.
Arispe's research program centers on the interplay between nutrition and reproduction in ruminants, as well as the effects of various grazing programs on natural resources in the sagebrush steppe ecosystem. His extension efforts provide land managers and beef cattle producers with science-based tools for sustainable private and public land stewardship. Notable achievements include receiving the New Technologies for Agricultural Extension Fellowship from the eXtension Foundation in 2020, one of only eight national recipients. Through this fellowship, he developed and expanded a hybrid GIS and remote sensing training course titled "Equipping Western Rangeland Managers to Create Land Management Plans," training participants in creating science-based rangeland management plans. Key peer-reviewed publications authored or co-authored by Arispe include "Fall-winter grazing after fire in annual grass-invaded sagebrush steppe reduced annuals and increased a native bunchgrass" (Rangeland Ecology & Management, 2021), "Effects of vaccination against respiratory pathogens on feed intake, metabolic, and inflammatory responses in beef heifers" (Journal of Animal Science, 2015), "Supplementing Ca salts of soybean oil to late-gestating beef cows: impacts on performance and physiological responses of the offspring" (Journal of Animal Science, 2020), and "Determination of organosulfides from onion oil" (Foods, 2020). He has also produced extension publications such as "Management of grasshoppers and Mormon crickets on rangeland and pastures" (2025) and "Livestock disease traceability programs" (2024).
