Monitoring of the prevalence of helminthiasis infestations in cattle on the territory of Sverdlovsk region
This article presents the results of the monitoring of the prevalence of helminthiasis infestations (nematodosis, trematodozis and cestodozis) among the population of the large horned cattle (LHC) hosted in farms of the different forms of the ownership (household plots, peasant farms, livestock operations) on the territory of Sverdlovsk region over the period from 2012 to 2015 years. During the monitoring work the data of the state veterinary statistical reporting about results of the diagnostic research conducted at the state regional veterinary laboratories (Form № 1-vet A), and the results of veterinary-sanitary examination held in farms and at the meat processing plants and markets (Form № 5-vet) were analyzed. For collection and analysis of statistical data the technical indicators of epizootic process were developed and used. Analysis and interpretation of these indicators allow to evaluate the course of the epizootic process and the territorial prevalence of the helminthiasis infestations (nematodosis, trematodozis and cestodosis), to determine the most disadvantaged for invasions areas of the Sverdlovsk region, generic and species composition of helminthiasis infestations. Evaluation of infestations extensity was given based on the analysis of the results of laboratory diagnostic studies and veterinary-sanitary examination, which is due to the identification of helminth infestations caused by geohelmints (such as nematodes) and biohelmints (such as trematodes). The statistical analysis of the obtained data allows to conclude that the situation to identify invasive diseases on the territory of certain districts of the Sverdlovsk region preserved from year to year, as evidenced by such indicators as the average percentage of detection, the average percentage of the diagnostic studies to the number of LHC on the area, as well as the results of laboratory diagnostic studies and veterinary-sanitary examination.