Parasite Fauna and Infection of Sheep with Parasitosis

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The purpose of our research wasto study the parasitic fauna and infection of sheep with parasites in thenorthern and southern regions of the Republic of Kazakhstan. For this, weconducted a study to determine the species diversity of sheep parasites. Thestudy was set from 2010-2020 years on infected sheep in the northern andsouthern parts of the Republic of Kazakhstan. The experiments were conducted atthe Department of Veterinary Medicine of S. Seifullin KazATU and the KazNIVI inAlmaty. The species diversity of parasites of adult sheep was studied. Thematerials for parasitological laboratory studies were sheep feces taken from 50sheep. Vital diagnostics of helminthiasis were carried out by scatologicalstudies of 50 sheep using the well-known methods of Fulleborn, Weid, and Boyahchyan. To establish the timing of infection, selectivecoprolarvoscopic studies of fecal samples taken from pastures were carried out.First, the invasive larvae were isolated from fecal samples by the Berman-Orlovmethod. Differential diagnosis of trichostrongylides was carried out accordingto the method of Y.Y. Shumakovich. Among the sheep of the Akmola and Karagandaregions, strongylatoses parasitizing in the gastrointestinal tract arerecorded: Nematodyrosis, ostertagiosis, hemonhoz, marshallagiasis, esophagostomosis, and, less often, bunostomosis.The development of eggs and larvae of the invasive stage in pasture conditionsis noted at the end of the first decade of May. The first cases of infection oflambs are observed in late May-early June. Thus, based on the three-yearresults obtained, it can be concluded that the absence of antiparasiticmeasures leads to infection of almost all livestock within 5-7 months and insubsequent years, reinfection occurs, which ultimately causes a decrease inproductivity and increase mortality, especially among young animals up to 1.5years of age.