Efficacy of therapeutic measures for chorioptosis of cattle
Skin diseases in farm animals are most often caused by ectoparasites, which are complex with the host. Chorioptosis of cattle is caused by skin mites of the genus Chorioptes, Chorioptes Bovis, which occupy a significant place among ectoparasites and cause great economic damage to livestock, has become widespread. Effective control and protection of animals against chorioptosis requires the development of highly effective insecticides, the therapeutic and economic feasibility proven by experimental studies. The study aimed to study the therapeutic efficacy of modern drugs for chorioptosis of cattle, taking into account the method and frequency of use of chemicals and active substances that are part of them. Experimental testing of domestic and foreign drugs for Chorioptes Bovis: brovermectin 1 % (DR – ivermectin), sebacil 50 % (DR – foxim), neostomazan (DR – transmix, tetramethrin). The leading indicators of the effect of drugs were extensibility and intensity. According to the results of the studies, it was found that the most effective drugs for spontaneous chorioptosis of heifers were drugs brovermectin 1% and sebacil 50% with three times their use with an interval of 10 days. Their extensibility and intensity efficiency at 25 and 30 days, respectively, was 100%. With double use of these drugs, the therapeutic efficacy (EE and IE) decreased, and on the 60th day of the experiment, brovermectin was 1 % – 66.67 and 87.82 %, sebacil 50 % – 53.30 and 82.04 %, respectively. The use of neostomazan in chorioptosis patients did not lead to their complete recovery. With double use of the drug on the 60th day of the experiment, the indicators of extensibility and intensively were 40.0 and 89.59 %, with three uses – 60.0 and 89.59 %, respectively. The obtained research results recommend brovermectin 1 % and sebacil 50 % to effectively carry out treatment and prevention measures for chorioptosis in cattle.
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