SEASONAL DYNAMICS OF TELEASIOSIS AND TIME OF INVASION OF MAJOR CULTIVATED CULTIVATION BY TELESIA IN NORTHERN NATURAL ZAURALIE
The sharp-continental climate of the northern Trans-Ural region did not become an obstacle to the spread of a large number of parasites in this region, among which acarosa, intestinal helminthiases, diktiokaulez and telaziosis are most often found in cattle. Telasiosis is widespread in Russia, the Northern Trans-Urals is not an exception, and given the serious pathologies caused by this disease, it is necessary to study its features in a specific region, for the rational development and planning of preventive and curative measures.The purpose of the study was to study the features of the seasonal appearance of telasiosis and the timing of the invasion of cattle in the conditions of the northern Trans-Ural region.To study the seasonal dynamics of telasiosis, a clinical examination of 27,433 head of cattle was carried out during the pasture period of 2002-2016. The diagnosis of telasiosis was confirmed by the microscopy of flushes from the conjunctival cavities of clinically ill animals and the detection of larvae of calves.It has been established that the first signs of telasiosis are revealed with reaching the pasture no more than 1.0% of the animals. Serious changes in the epizootic situation occurred one month after reaching the pasture. So, if in the first ten days of May, only 3.39% of the animals in the herd with the telaziosis clinic were detected, then by the end of the month this indicator increased more than twice and amounted to 7.04%. The largest number of patients with telasiosis of animals was recorded from the second decade of June to the second decade of August, when extensivization varied from 10.01 to 15.83% (mean long-term average). The peak of invasion occurred in the third decade of July - the first decade of August with an invasive extent of 15.83-15.36%. By the end of September, the number of animals with clinical signs of telasiosis was less than 5.0%, and in October it did not exceed 1.61%.