SCREENING PICTURE ON PASTEURELLOSIS IN A FLOCK OF SHEEP AT ASSIUT GOVERNORATE

During the period of September to October, 1992, pneumonic and haemorrhagic septicaemic signs appeared among a flock of sheep (100 heads) aged from 6-12 months old, raised on desert land of Gahdem at Assiut Governorate. The clinical conditions of sheep supported by the achived result obtained from bacteriological: biochemical: laboratory animal inoculation, post-mortum and histopathological examinations conducted us to the correct diagnosis of the infected and dead sheep and the disease condition was pasteurellosis. The disease characterized by pneumonia (Croupus necrotic type). However, septicaemic forms were also observed, in which pulmonary lesions were minimum. Septicaemic form was characterized by extensive pectoral and abdominal subcutaneous oedema. 43 strains of pasteurella multocida type A (Carter) were constantly isolated from dead and infected sheep.