Clinicopathological Attributes of Swine Pasteurellosis
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چکیده
Swine pasteurellosis was observed in descript as well as non-descript pigs of Chhattisgarh, India. Affected animals exhibited pyrexia, dullness, staggering gait, anorexia, serous nasal discharge and dyspnoea. Case fatality rate was 95% in adult animals and 100% in piglets. Typical lesions of oedematous swellings noted in the pharyngeal region, these swellings spread to the ventral cervical region and brisket of affected pigs. Gross lesions included severe pneumonia and haemorrhages in lungs, petechial haemorrhages on serous membranes and other visceral organs. Lymph nodes were enlarged, oedematous and haemorrhagic. The blood smears from heart blood and tissue impression smears revealed bipolar organisms indicating the presence of Pasteurella spp. The cultures obtained were subjected to Gram’s staining for checking the purity, bipolar morphology and biochemical characterization of the organisms. Molecular characterization revealed Pasteurella multocida, capsular type B. On histopathological examination, lungs showed typical fibrinous bronchopneumonia, multifocal suppuration. Pleura was severely thickened. Heart of some pigs showed presence of thrombi, haemorrhages and necrosis of myocardium.
منابع مشابه
Histopathological and immunohistochemical approaches for the diagnosis of Pasteurellosis in swine population of Punjab
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