[Parasitic diseases--a current problem area in intensive pasture management].

Current problems of intensive cattle pasture farming are considered with regard to three main aspects: parasite, habitat, biotop. Among the economically significant parasitic infections in the G.D.R. livestock of cattle, 15 must be considered to be productivity-reducing factors: trichostrongylidosis, dictyocaulosis, fasciolosis, babesiosis, pasture-coccidiosis (hypodermosis, stephanofilariosis--both eradicated!), mass-incidence of flies and black flies, tick infestation, thelaziosis, monieziosis, dicrocoeliosis, cysticercosis and hydatidosis. Incidence, scale of economic losses and present state of control of these parasitic infections are briefly discussed. This introductory report is closed with an outline on the "legal basis of parasite control in pasture farming".