Livestock Systems Management
UC Cooperative Extension

UC Davis - The University of California, Davis

James W Oltjen

James W. Oltjen, Ph.D.
Cooperative Extension Animal Management Systems Specialist
Department of Animal Science
University of California
Davis, CA 95616-8521, USA
Phone: (530)752-5650
FAX: (530)752-0175


B.S., Physics, Kansas State University, Manhattan, Kansas, 1975.
M.S., Animal Science, Kansas State University, Manhattan, Kansas, 1978.
Ph.D., Nutrition, University of California, Davis, California, 1983

Extension Interests

  • Computer decision support software.
  • Beef quality assurance.
  • Standardized performance analysis for cattle and sheep ranches.

Research Interests

  • Animal management systems.
  • Resource use in animal agriculture.
  • Beef cattle growth

Graduate Groups