The staphylococcosis of animals and birds in the Baikal region

The estimation of the frequency isolation staphylococcus at examination of birds, farm and domestic animals and study of their specific characteristics during the years 2004-2011 was given. Studies conducted in Irkutsk Interregional Veterinary Laboratory. 6890 samples of biological material were examined. The frequency of isolation staphylococcus in birds was 69,9%, in animals - 53,6%. Among animals the highest isolation staphylococcus was at examination of animals belonging to the group of “other” (dogs, cats, rabbits), - 72,8%, the lowest - at examination of cattle - 25,3%. The dynamics increase the frequency of isolation of staphylococcus in animals was revealed during the study period. The etiological structure staphylococcosis was quite various and represented 13 species of microorganisms. S.aureus (39,4%) and S.epidermidis (26,5%) were the leading etiological agents of infection among animals, S.aureus (45,5%) и S.gallinarum (43,9%) - among birds. S.haemolyticus quite often were isolated from pigs and small cattle. The widest spectrum of staphylococcus was registered at inspection animals belonging to the group of «other» (12 species). Species composition of staphylococcus isolated from animals was wider that in birds. S.aureus dominated throughout the observation period, but in recent years have witnessed increasing share S.gallinarum, S.xylosus and S.warneri. The staphylococcosis of animals, especially cattle, have a significant territorial prevalence (15 districts, three cities of Irkutsk region). More 40% of all infections in animals registered in the Irkutsk and Bratsk districts. Staphylococcus in birds were isolated in seven districts, three cities of Irkutsk region, as well as in the study of pathological material from the poultry farm Neryungi (Yakutia) and “Amursky broiler”.