The article describes studies on the isolation of bird salmonellosis, colibacteriosis and pasteurellosis pathogens from environmental objects, their morphological, pathogenic and biochemical properties. The cultures of Salmonella and Eshirichy grew well on the Endo, Levin and Ploskirev media, and pasteurellosis in the Hottinger medium. The data obtained show that in the poultry farm settings the pathogenicity of the isolated Escherichia strains was 53.3-80.0%, Salmonella - 73.3-93.3%, and Pasteurell - 66.6%. Biochemically, all strains were active.


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