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Eimeria Zuernii Infection In Thai Native Calves, Komkrich Teankum, Nopadon Pirarat, Manop Moungyai
Eimeria Zuernii Infection In Thai Native Calves, Komkrich Teankum, Nopadon Pirarat, Manop Moungyai
The Thai Journal of Veterinary Medicine
A 3-month-old, female calf in the Dontan district of Mukdaharn province, showed clinical signs of bloody diarrhoea over a period of 3 days and finally died on April 4, 2001. After necropsy, severe, diffuse, haemorrhagic caeco-colitis and proctitis were markedly evident. Histopathologically, various stages of coccidial development, including schizogony and gametogony, were found in the villous epithelium and the epithelial crypts. Infiltration of lymphocytes, plasma cells, neutrophils and macrophages into the lamina propria, as well as into the submucosa was observed. Another 6-month-old, female calf from a nearby area also showed bloody diarrhoea with mild anorexia and numerous oocysts of …