Ivermectin as antiparasitic agent in goats

ABSTRACT

Eighty goats 1-2 years old, naturally infested by gastrointestinal parasites were divided into two groups of 40 each. One group was given a subcutaneous injection of ivermectin at the rate of 0.2 mg/kg body weight and the other group was kept as an untreated control. Fecal egg counts and larval cultures were made before treatment, 14 and 30 days post-treatment. Moreover, from each group, three goats were selected and slaughtered 30 days post-treatment. Collected worms were identified and counted. Ivermectin proved to be highly effective on Trihostrongylus axei, Trichostrongylus colubriformis, Haemonchus contortus, Oesophagostomum radiatum and Strongyloides papillosus. Efficacy against Trichuris ovis was lightly lower [83.3%]. Treated animals did not show any symptoms of ill effect during the period of observation