Mycoplasma ovipneumoniae infection in a goat on Okinawa Island
2017
Nakao, S. (HOKUBU Livestock Hygiene Service Center of Okinawa Prefecture, Nago (Japan)) | Nakamura, M. | Araki, M. | Sugiyama, A.
A goat with clinical signs of cough and dysstasia on a goat-breeding farm in Okinawa Prefecture that had bred 12 goats was examined. At the necropsy, hyperemia and swelling of the lungs, retention of pericardial fluid, and bleeding and swelling of the mesenteric lymph nodes were observed. Histopathological examinations revealed lymphoid follicular hyperplasia around the bronchus, suppurative bronchial pneumonia and interstitial pneumonia with hyperplasia of the bronchial mucosa. Mycoplasma ovipneumoniae and Bibersteinia trehalosi were isolated from the lung lesions. Rabbit immune serum against M. ovipneumoniae was prepared using the isolate from the present case. In the metabolic inhibition test, the titer was estimated to be 1,280. Immunohistochemically, M. ovipneumoniae antigens were detected in the lesional areas of the lung. Based on these findings, the case was diagnosed as mixed infections of M. ovipneumoniae and B. trehalosi.
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