A presença de resistência anti-helmÃntica por nematóides gastrintestinais em caprinos da zona da
mata do Estado de Alagoas foi avaliada. Os animais foram divididos em quatro grupos, um controle e três
testados com drogas distintas: moxidectina, ivermectina e albendazole. A avaliação da eficiência das drogas foi
feita pelo teste de redução na contagem de ovos nas fezes (RCOF) e a diferenciação das larvas infectantes pela
cultura fecal. As coletas de fezes foram feitas antes e com 7, 14 e 21 dias pós-tratamento. A eficiência do
albendazole, ivermectina e moxidectina no 7º, 14º e 21º dia pós-tratamentro, foi de 97,89%, 71,2% e 80% para o
albendazole, de 98,74%, 88,3% e 87% para ivermectina, e de 83,6%, 96% e 96,3% para moxidectina, nos
respectivos dias de observação. As larvas infectantes prevalentes nas culturas foram do gênero Haemonchus
(95%), revelando resistência às drogas testadas.
Anthelmintic resistance of gastrointestinal nematodes of goats, from the zone of the forest of the
Alagoas State, was evaluated. The flocks were split into four groups, one control group and three tested with
different drugs: moxidectin, ivermectin and albendazole. The evaluation of the efficiency of each drug was made
by reduction test in the count of eggs of feces (RCOF) and differentiation of infective larvae by the fecal culture.
Samples of feces were collected before treatment and at days 0 and 7, 14 and 21 post-treatment. The efficiency
of albendazole, ivermectin and moxidectin at the days 7, 14 and 21, was 97.89%, 71.2%, 80% for albendazole;
98.74%, 88.3%, 87% for ivermectin; and 83.6%, 96% 96.3% for moxidectin, at the respectivelly days of
evaluation. The prevalent infective larvae in fecal cultures were of the gender Haemonchus (95%), revealing
resistance to the tested drugs.
