PECULIARITIES OF SHEEP PARASITOSES SPREADING IN THE AUTUMN-PASTURE PERIOD

Abstract

Current trends of livestock farming development are accompanied by the formation of new parasitic sys-tems, the co-members of which can significantly affect the effectiveness of the industry. Among the infectious diseases of sheep, helminthiases and coccidioses are often one of the main reasons, which lead to reduced animal productivity, metabolic disorders, reduced immunity and often animal death. The knowledge of epi-zootic situation regarding the causative agents of animal parasitoses, their species composition and forms of disease course will allow to conduct effectively anti-parasitic measures in specific conditions. The aim of the research was to establish the peculiarities of spreading and course of sheep parasitoses in the autumn-pasture period. According to the results of scatoscopic studies of sheep, it was found that in the autumn-pasture period, the prevalence of animal infestation with parasites reached 100.0 % in Poltava region. The fauna was represented by nematodes of Strongylida line, Strongyloides papillosus and Trichuris spp. spe-cies, Moniezia spp cestodes and the simplest organisms of Eimeria spp. Strongylatoses of the digestive tract were dominant in sheep, where prevalence of the invasion made 96.68 %, intensity of the infection made 210.93 eggs/g, and also monieziasis, under which infestation indices made 44.74 % and 123.29 eggs/g, re-spectively. Eimeriosis (22.37% and 73.65±26.76 oocysts/g), trichurosis (11.84 % and 14.22 eggs/g) and strongyloidiasis (10.53 % and 12.00 eggs/g) were found less often. Parasitoses in the autumn-pasture period often occur in the form of associative invasions, where their percentage reaches 63.16 %. Mono-invasions are represented by strongylatoses of the digestive tract (96.43 % of animals with mono-invasion) and monie-ziasis (3.57 %). Associative invasions took the form of two-, three- and four-member parasitoses, in which invasions consisting of two (prevalence of the infection made 39.47 %) and three (22.37 %) species of para-sites were dominant. Less frequently, a four-member association was registered, which consisted of stron-gylates of the digestive tract, moniezias, trichurises and eimeries (1.32 %). Of the two-member invasions, simultaneous parasitizing strongylates of the digestive tract and moniezias (27.63 %) in the body of sheep, and of the three-member infestations – strongylates of the digestive tract, eimeries and moniezias (6.57 %) were detected most often.