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https://doi.org/10.26898/0370-8799-2025-2-12
In the course of the research the species composition of the microflora isolated from poultry at poultry farms of the Omsk region was studied. For this purpose, 392 samples of pathologic-anatomical material (blood from heart, brain and bone marrow, liver, gall bladder, and intestine) were collected from broiler chickens (62.2%), quail (16.3), laying hens (12.6), and broiler turkeys (8.9%). Indication and identification of microorganisms were carried out according to the methods generally accepted in microbiology. The isolated cultures belonged to 4 families: Enterobacteriaceae (39.7%), Enterococcaceae (36.5), Staphylococcaceae (23.1), Pseudomonadaceae (0.6%). The largest number of the isolated pathogenic and opportunistic microorganisms were identified as Escherichia coli (23.8%), Enterococcus faecalis (21.9) and Staphylococcus aureus (19.2%). The widest range of microorganisms was isolated from the contents of the intestines of the birds. The leading places were occupied by E. coli (27.2%), E. faecalis (21.2), S. aureus and Enterococcus faecium (17.3% each). In the study of blood from the heart, brain and bone marrow, E. faecalis (21,8–30,3%), S. aureus (18,2– 22,7) and E. coli (14,1–21,8%) took the leading position. When studying the microflora isolated from the liver, S. aureus (36.8%) and E. coli (26.3%) were most often recorded, Proteus mirabilis and E. faecalis also accounted for a large proportion (15.8% each). Microbiological examination of the gallbladder established the dominance of S. aureus, Enterobacter agglomerans, E. faecium and E. coli. The greatest variety of microbial species was isolated from broiler chickens. The results of microbiological studies made it possible to identify etiologically significant microorganisms involved in the development of infectious pathology in agricultural poultry in the Omsk region. This information can be used to develop treatment and prevention strategies in poultry farms in the region to ensure their epizootic well-being.
Senior Researcher, Candidate of Science in Veterinary Medicine
Morozovka, Omsk region
Lead Researcher, Candidate of Science in Veterinary Medicine
Morozovka, Omsk region
Lead Researcher, Candidate of Science in Veterinary Medicine
Morozovka, Omsk region
Lead Researcher, Candidate of Science in Veterinary Medicine
Morozovka, Omsk region
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Hoffman A.A., Lysko S.B., Zadorozhnaya M.V., Suntsova O.A. Species composition of microflora isolated from poultry. Siberian Herald of Agricultural Science. 2025;55(2):101-108. https://doi.org/10.26898/0370-8799-2025-2-12
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