Lekooporność nicieni żołądkowo‑jelitowych kóz. Część II. Metody zwalczania i zapobiegania inwazji

Many health disorders in goats result from infections with intestinal nematodes, however this problem is commonly misdiagnosed by veterinarians. Treatment is based on the use of an effective anthelmintic in a goat-proper dose. In practice, the control of parasitic infections in goat herds is based on the use of antiparasitic drugs: benzimidazoles (albendazole), imidazothiazoles/tetrahydroxypyrimidines (especially levamisole) and macrocyclic lactones (ivermectin, eprinomectin). Unfortunately, only few antiparasitics are registered in Poland for use in goats. This renders veterinarians to extrapolate dosage from cows and sheep, which is however considerably different. Thus, the failure of treatment is the most direct consequence of incorrect protocol of therapy, but growing resistance of nematodes to anthelmintics quickly follows. Furthermore, it is crucial to comply with the Directive 2001/82/WE and assume longer withdrawal periods, when the drug is used in an extra-label pattern. The aim of this article was to present methods of control and prevention of infection with gastro-intestinal nematodes in goats.