THE ETIOLOGY OF THE INITIATIVE OF GASTROENTERITES OF THE YOUTH OF AGRICULTURAL ANIMALS IN THE CONDITIONS OF THE AMUR REGION
Of great importance is the determination of the species composition of microflora in young animals of farm animals with diarrhea for the development of effective measures for disease prevention, improvement of zootechnology for their maintenance, since diseases with lesions of the gastrointestinal tract in newborn animals are more severe, prolonged, often with complications and high lethality in comparison with a monoinfection. The research was conducted in the unfavorable farms of the Amur Region with massive gastrointestinal diseases of newborn calves, pigs, lambs. The objects for research were newborn animals. For this, groups of young animals of agricultural animals were formed according to the principle of para- analogues with 10 heads each. Analogues were selected taking into account the breed membership, live weight, sex, age and health status. The conducted studies showed that enzootic, in all studied farms, had a stationary character and was observed for several years in all se-zones of the year, but especially during the period of mass delivery. With the help of bacteriological and mycological methods, samples of faeces of diseased calves, pigs and lambs were identified association of opportunistic bacteria. The obtained results testify to the variability of the composition of the intestinal microflora of newborn sick animals, from which the Gram-negative bacteria of the Enterobacteriaceae family are isolated, less often gram-positive microorganisms. The established dependence of diarrheal diseases of newborn farm animals on the unfavorable factors of the ecological and biological system indicates the inadequacy of veterinary and sanitary measures carried out and the non-compliance of zoogenic hygiene requirements in the technology of young animals, which contributes to a high concentration of opportunistic microflora, and enteropathogenic strains of Escherichia coli cause a high incidence of newborn animals and severe acute intestinal disorders. Conducted studies of mycobiocenosis of the intestines of young animals of agricultural animals indicate the development of a fourth degree dysbiosis. Observed dysbacteriosis contributes to the occurrence of gastroenteritis and gastroenterocolitis.