Features Of Eimeria-Strongyloid Invasion In Sheep South Kazakhstan

Abstract

Background: In Kazakhstan, until recently, EIMERIOSIS and STRONGYLIODOSIS of sheep are considered and studied separately. At the same time, the authors took into account the influence of parasites on the host organism only from any one taxonomic group. However, in a production environment the causative agents of invasive diseases in animals in most cases of parasites in the mixed form of the associative and cause disease.

Material and Methods: The collection of material in the mountainous zone of Southern Kazakhstan was carried out in 2015-2019 from 360 sheep in a peasant farm. The material was collected by the method of complete helminthological autopsies and in vivo studies. The matrices obtained by complete helminthological dissection were poured into cotton bags, labelled and preserved in a common jar with Barbagallo liquid. In vivo parasitological studies of sheep was performed by the method of O. Burkina.

Results: The infection of sheep with monenvasia ameriam depends on the season of the year. The infection rate of animals in winter is 47.8% with the intensity of invasion (AI) of 17.4 oocysts, in spring-24.4% with AI of 7.9 oocysts, in summer-38.9% with AI of 233.4 oocysts, in autumn-43.3% with AI of 51.9 oocysts, that is, high EI is observed in winter, and AI – in summer. In young animals up to a year, the highest EI (80.0%) and AI (338.9 oocysts) is in summer, then this indicator decreases in autumn to 43.3% with AI 146.5 oocysts, in winter-53.3% with AI 36.1 oocysts, in spring - to 30.0% with AI 5.3 oocysts.

Conclusion: In the farms of Southern Kazakhstan, seven species of eimeria were found in sheep: E. ahsata, E. crandallis, E. faurei, E. intracata, E. ovina, E. ovinoidalis, E. parva and Strongyloides papillosus. The infestation of sheep with eimeria, strongyloid and eimeria-strongyloid infestations depends on the age, season and geographical zones.