Efeito das avermectinas sobre nematódeos gastrintestinais de bovinos, no Semiárido do Rio Grande do Norte.

Abstract

Currently there is much difficulty in livestock production by acquired resistance of anthelmintics, this is due to its widespread use over the years. The work presented here was to evaluate the sensitivity of gastrointestinal nematodes in cattle with anthelmintics in semiarid region of Rio Grande do Norte. Given the enormous resistance found in different wormers, this review is of great economic importance both for producers and for the health of animals. The sensitivity to anthelmintics was evaluated by a test reduction of eggs per gram of faeces taken in the laboratory of parasitology of the Academic Unit of Veterinary Medicine (UAMV) Health Center and Rural Technology (CSTR), Federal University of Campina Grande (UFCG). The results showed that there was resistance to ivermectin of gastrointestinal helminths did not reach 95% efficiency already Doramectin showed 95.5% efficiency demonstrated to be effective in the treatment of helminthiasis.