Abstract of research

PATHOLOGICAL STUDIES ON CAPRINE CLOSTRIDIUM PERFRIENGENS COMPLICATED WITH SOME PARASITIC AND VIRAL INFECTION

Mohamed M. Salem 1, Abdalla E. Ali 2, Shawky A. Moustafa 1, Sameh A. youssef 3 and Dalia F. Khater 4

Abstract

An outbreak of C. perfringens in complication with other pathogens was investigated in mixed heard of sheep and goat at Al Gharbiyah provinces, Egypt during late March 2011 to July 2012. Bacteriological and parasitological examination reflects the presence of C. perfringens in all examined flocks. Eimeria was detected in suckling kids less than 3 months of age in one flock. Meanwhile the clinical findings, post- mortem and histopathological examination suggestive PPR in suckling kids less than 3 months of age in other two flocks. The morbidity and mortality rate in suckling kids infected with cl. Perfringens in complication with PPR in the flocks were(92%,94%),(32%,94%) respectively. on clinical examination big head, pyrexia , sneezing, coughing, lacrimation, serous- mucopurulent nasal discharge, frothy mouth, diarrhea and conjunctivitis were reported. Terminal convulsion, opisthotonus and death were observed. The gross and histopathological findings are reported as erosive, ulcerative stomatitis and necrotic enteritis. Presence of inclusion bodies and syncytial cell formation was pronounced. The pulmonary lesions were necrotic bronchitis, bronchiolitis and broncho-interstitial pneumonia, with edema and pleuritis. Lymphoid tissue showed extensive hemorrhage, edema and acute necrosis, depletation of the lymphoid cells and macrophage cell infiltration in the germinal centers of sinusoid. Interstitial myocarditis, hyalinization of the myocytes and hemorrhages were pronounced. While in suckling Damascene kids ,less than 3 month of age, infected with C. perfringens in complication with coccidiosis, out of 14 Damascene goat 12 developed clinical signs (84%) , dead 6 (43%). Clinical findings are big head, pyrexia and diarrhea. Gross findings revealed, congestion, edema and wide spread petechial hemorrhages and ecchymosis of mucosa of intestine. Histopathological finding include necrotic enteritis with large number of necrosed epithelial cells and hyperplasia of remaining epithelium in which Eimeria in different stages of schizogony.