The Diversity of Parasitic Invasions upon the Cattle of Different Ages in the Republic of Moldova

Abstract

The level of geoparasites invasion (S. papillosus, N. vitulorum, Eimeria spp.) upon the cattles, decreases with age probably as a cause of immunity. So, adult cattle are still carriers for parasitic forms. The level of infestation with biohelminthes (E. granulosus larvae, F. hepatica, D. lanceolatum) increases with age probably due to long contact with infesting forms on the pasture. The prevalence species is D. lanceolatum which is characteristic for the steppe and forest steppe ecosystems, where the intermediary hosts and complementary hosts shelter. Absence or irregular dehelminthisation, permanent contact of cattle with intermediate and complementary hosts on the pasture, as well as massive pollution of pastures with parasitic elements of different invasive forms, keep a permanently high level of infestation in cattle.