The purpose of research is the resistance increasing of the chinchillas organism to the representatives of pathogenic and conditionally-pathogenic microbes with non-infectious pathology for the gastrointestinal tract. Based on the purpose of the study, were as follows – extruding and identification chinchillas contained family transient and resident representatives microbiocenosis; by morphological, tincrial, cultural, biochemical and serological properties of these microbes. The experimental group, chinchillas with non-communicable disorders of the gastrointestinal tract (gastroenteritis and colitis) in fecals resident microorganisms Enterococcus faecalis – КОЕ 2.85h104±0.23, Peptococcus niger – 3.64h105±0.33, Peptostreptococcus anaerobius – 3.74h104±0/52, Lactobacillus delbrueckii – 2.84h102±0.53, Bifidobacterium bifidum – 3.16h102±0.46, Es-cherichia coli – 2.67h105±0.53, Serratia marcescens – 2.95h104±0.13, Bacteroides fragilis – 2.57h103±0.12, Prevotella bivia – 4.21h103±0.24 were identified. Among the transient microorganisms were identified Staphylococcus epidermidis and S. saprophiticus, Streptococcus rattus and S. cricetus, Enterobacter cloacae, Klebsiella oxytoca, Citrobacter diversus, Salmonella enteritidis, and Yersinia enterocolitica, Proteus vulgaris, Bacillus cereus, B. subtillis, Clostridium sporogenes, C . ramosum, C. difficile, Helicobacter pylori, Campylobacter coli. In conclusion: Microbiocenosis healthy chinchillas includes automicroflora occupying a certain ecological area in the animal organism. With the development of non-contagious disease of the gastrointestinal tract in chinchillas reduces the number of automicroflora and its situation replaces transient and opportunistic pathogenic microorganisms, penetrating into the body of animal alimentary and fecal-oral. It is important to use the effective probiotics for chinchillas gastrointestinal tract.

microbiocenosis, chinchilla, enterobacteria, enterococci, bacteroides .