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http://dx.doi.org/10.14405/kjvr.2021.61.e33

A clinical case of bovine anemia due to Theileria orientalis group in a non-grazed dairy cow in the upper part of South Korea  

Espiritu, Hector M. (Animal Disease and Diagnosis Laboratory, Department of Animal Science and Technology, College of Life Science and Resources, Sunchon National University)
Lee, Hee-Woon (Mari Animal Medical Center)
Lee, Sang-Suk (Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, College of Life Science and Resources, Sunchon National University)
Cho, Yong-Il (Animal Disease and Diagnosis Laboratory, Department of Animal Science and Technology, College of Life Science and Resources, Sunchon National University)
Publication Information
Korean Journal of Veterinary Research / v.61, no.4, 2021 , pp. 33.1-33.5 More about this Journal
Abstract
This study reports the detection and genotyping of the first clinical case of bovine anemia due to Theileria orientalis group (BATOG) in non-grazed dairy cow in upper South Korea. Blood and serum tests revealed anemia and hyperbilirubinemia from animal showing clinical symptoms, and later confirmed as piroplasmosis-positive. Follow-up surveillance on the herd revealed 2 asymptomatic cows with anemia. The three animals were confirmed theileriosis-positive and genotyping revealed the clinical and one of the asymptomatic cases have Chitose, while the other has Ikeda genotype. Clinical BATOG cases were rarely reported worldwide, and asymptomatic animals left untreated could serve as parasite reservoir.
Keywords
Theileria orientalis; hemolytic anemia; hyperbilirubinemia; major piroplasm surface protein; Holstein-Friesian;
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