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Katherine Petersson

Professor and Chair 
Department of Fisheries, Animal & Veterinary Science


Sustainable Agriculture and Food Systems Specialization of the Biological & Environmental Sciences Graduate Program

(401) 874-2951

Department of Fisheries, Animal, & Vet Science
University of Rhode Island
Kingston, Rhode Island


Katherine Petersson is a Professor at the University of Rhode Island (URI) in the Department of Fisheries, Animal & Veterinary Science. Dr. Petersson obtained her B.S. degree in Animal Science, from Texas A&M University in 1982 and her M.S. (1986) and Ph.D. (1990) in Animal Science (Nutrition) from Cornell University. Katherine’s integrated research/outreach program is focused upon three areas: 1) the use of plant products with natural anthelmintic activity and the efficacy of Bacillus thuringiensis crystal proteins against gastrointestinal nematodes in small ruminants, 2) maximizing the normal immune response of sheep and goats to gastrointestinal parasites and 3) adoption of integrated parasite control practices by small ruminant producers that will increase the health and well-being of their livestock.



Articles by Dr. Petersson
Do's and Don'ts of FAMACHA© Scoring [February 2016]

Crystal Proteins:  a novel alternative to manage gastrointestinal parasites in sheep and goats [June 2024]


Brown stomach worm (Teladorsagia) [December 2022]

Last updated 08.15.23

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