Ecological-epizootic monitoring of helminth infections in cattle at milk-producing farms of the Vologda region

The data of monitoring studies of ecological-epizootic situation on the helminthoses of cattle at dairy farms of Vologda region have been given. The distribution of helminthoses depending on the natural - economic areas, seasonal and age dynamics of helminth infections, time period of helminth infection, associated invasions, the dependence of infected animals on the breed factor and on the animals keeping technology have been studied.