Sergio Arispe
Assistant Professor
Malheur County
Department of Animal and Rangeland Sciences
Malheur County Extension Office
710 SW 5th Avenue
Ontario, OR 97914
United States
541-881-1417 x104


My research program focuses on the interplay between nutrition and reproduction in ruminants. Furthermore, I am interested in grazing programs and the dynamic impacts different grazing programs have on natural resources in the sagebrush steppe ecosystem of eastern Oregon.


Ph.D. Animal Biology, University of California, Davis, 2012

M.S. Agricultural Education, Texas A&M University, 2003

B.S. Animal Science, Texas A&M University-Kingsville, 2001


Arispe SA, Adams B & Adams TE 2013 Effect of phytoestrogens on basal and GnRH-induced gonadotropin secretion. Journal of Endocrinology 219 243-250.

Wingenbach GJ, Boyd BL, Lindner JL, Arispe SA, Dick S, & Haba S 2003 Students' knowledge and attitude about international agricultural issues. Journal of International Agricultural and Extension Education 10 25-36.

Outreach and Extension

My outreach and extension program focuses on equipping land managers and beef cattle producers with science-based information that promotes healthy land private and public land management.