Resistência anti-helmíntica na caprinocultura leiteira do arranjo familiar do Cariri Paraibano.

Abstract

The objective of this work was to evaluate anthelmintics resistance in goats in Paraiban Cariri. 144 animals were used in the dry season and 120 animals during the rainy season, females over the age of eight months living, divided in four groups: Group I, untreated; Group II treated with albendazole 10%, Group III treated with ivermectin 1% and Group IV treated with levamisole phosphate 18.8%, at doses recommended by manufacturer. To evaluate the resistance was applied to test the reduction in egg count per gram of feces (RCOF) and larvaculture. The fecal samples were collected on the day of treatment (day basis), 07, 14 and 21 days post treatment. In the group treated with albendazole, observed efficiencies of 61%, 11% and 24% in the dry period, 55%, 14% and 12% in the rainy season, at 7, 14, and 21 days respectively. In the group treated with ivermectin, efficacy was 14%, 70% and 66% for the dry period, 76%, 34% and 71% for the rainy season, at 7, 14 and 21 days respectively. The group treated with phosphate Levamisole showed efficacy rates of 89%, 79% and 73% in the dry period, 76%, 69% and 67% in the rainy season, at 7, 14 and 21 days. The results indicate that the gastrointestinal nematodes of goats in Cariri are not sensitive to the active Albendazole, Levamisole and Ivermectin. During the study identified the presence of genera: Haemonchus, Trichostrongylus, Oesophagostomum and Strongyloides.