Bacteriological and pathological studies on salmonellae in free-flying wild birds in faculty of veterinary medicine farm at Ismailia governorate

ABSTRACT

The occurrence of Salmonellae in a variety of free-flying wild birds was investigated. Of 57 intestinal content and reproductive organ samples examined, 10 yielded 3 different Salmonella serovars, which included 7 strains of S. typhimurium of Phage type 141, 2 of S. enteritidis of Phage type 4 and 1 of S. dublin. House sparrow [Passer domesticus], rock dove [Columba livia], swallow [Hirundo rustica] and crow [Corvus corone] were found positive for the presence of Salmonella. Antibiogram of the isolates was studied against 13 common chemotherapeutic agents. The gross lesions were the presence of hemorrhages in multiple organs. Necrotic focci in the liver and multifocal whitish firm nodules in kidney were noticed. Microscopically, the pronounced lesions were coagulative necrosis in liver and granulomatous nephritis