THE FAUNA OF INTESTINAL PARASITES OF BISON IN TERMS OF RESERVES

Сurrently, the study of parasitic diseases of wild ruminants is a priority in the general range of animal parasitosis, as wild ruminants can be a source of infection with helminthiasis for agricultural ruminants, as well as for humans. Studies were conducted in two reserves containing bisons – FSBI Prioksko-Terrasny reserve and SNR "Kaluzhskiye Zaseki". The objects of the study were bison of different age and sex groups, the material was feces taken from the pens. The studies were conducted according to generally accepted methods. The result of helmintho-ovoscopic methods of diagnostics showed that the fauna of intestinal parasites in GPP " Kaluzhskiye Zaseki" is represented by the following species and genera of helminthes: Fasciola hepatica, Nematodirus, Trichostrongylus and Trichocephalus, as well as protozoa of the Eimeria genus and in the Federal Prioksko-Terrasny reserve it is represented by Dicrocoelium lanceatum, Moniezia expansa, Moniezia benedeni, Trichocephalus, and Trichostrongylus. The fauna of intestinal parasites of bison from the nature reserves of the Kaluzhskiye Zaseki and the Prioksko-Terrasny reserve differ, trematodes of different species of Fasciola hepatica and Dicrocoelium lanceatum have been revealed in animals, which is obviously connected with different agro-climatic conditions of the area, and also, in the Prioksko-Terrasny reserve monizia of two species have been found, and protozoans of the Eimeria genus have not been found. The prevalent helminthiasis in both reserves are gastrointestinal strongylatosis and trichocephalosis.