James A.
Pfister
RESEARCH RANGELAND MANAGEMENT SPECIALIST
Poisonous Plant Research Lab
1150 E 1400 N
N Logan, UT 84341
(435)752-2941
Education
1983 PhD Range Animal Nutrition; Utah State University
1979 MS Range Science; New Mexico State University
1977 BS Animal Science; Utah State University
Delphinium andersonii, Picabo Idaho
Horses eating locoweed in Arizona
Cattle browsing on ponderosa pine needles in South Dakota
Cattle eating lupine in eastern Washington
Research Interests:
Plant animal interactions involved in consumption of toxic plants. Effects of toxic plant consumption on animal behavior. Nutritional status of grazing animals and effects on consumption of poisonous plants. Grazing management of livestock to reduce risk of losses to poisonous plants.
Selected Significant Accomplishments:
· Developed grazing management recommendations for cattle on tall larkspur infested rangelands
· Determined relationship between toxicity and palatability in larkspurs, and elucidated cyclic consumption patterns of larkspurs by cattle
· Determined impacts of cattle body condition and nutritional status on pine needle ingestion by cattle
· Determined effects of locoweed on maternal/offspring behaviors