An outbreak of peracute haemorrhagic septicaemia in buffaloes of jammu region (India): A pathological study

An outbreak of peracute haemorrhagic septicaemia in buffaloes of Jammu region was recorded. In this out break, 31 out of 390 animals were affected and 8 out of 31 animals of either sexes were died within 24–30 h. Peripheral and heart blood and impression smear of spleen and lymph nodes revealed Gram-negative bipolar coccobacillary organism. Clinically, ill animals showed progressive symptoms of anorexia, pyrexia, dyspnea, severe dehydration, sternal recumbency, coma and death. Grossly, generalised severe congestion and haemorrhages in all the visceral organs with enlargement of liver, lymph nodes, and spleen were observed. The histopathological changes included generalised severe congestion and/or haemorrhages, oedema and degeneration of myofibrils, oedema in lungs and trachea, acute haemorrhagic enteritis, diffuse mild vacuolar degeneration of hepatocytes and tubular nephrosis, moderate lymphoid depletion in lymph nodes and spleen and loss of spermatogonial cells in testes and mild neuronal degeneration with focal gliosis in brain were observed.