Characteristics of the composition of the parasitofauna of the gastrointestinal tract of ruminants, taking into account the use of anthelmintics

The article presents data on the composition of the parasitofauna of the gastrointestinal tract in various agricultural ruminants belonging to private farms located on the territory of the Moscow region. Studies have shown that cattle are invaded by 11,45 %, goats by 91,11 % and sheep by 94,12 %. The parasitofauna is represented by the suborder Strongylata, two genera of nematodes – Nematodirus and Trichocephalus, as well as the genus of protozoa Eimeria. The results of the studies indicate the spread of mixed invasions, among which the dominant and permanent articulation are strongylatoses of the gastrointestinal tract. During deworming, benzimidazole- and avermectin- containing drugs were used. The extensivity (EE) of fenbendazole with respect to strongylatoses of the gastrointestinal tract of cattle and goats was 100 %, and EE of ivermectin with respect to strongylatoses of the gastrointestinal tract of goats was 96,56 % and with respect to trichocephalosis 83,33 %, and in sheep 100 % and 66,67 %, respectively.