| The study was conducted on (22) local goats naturally infested with Haemonchus contortus, (1-3 years old), in Mosul city, between March 2010 to May 2010. Affected goats exhibited clinical signs included, emaciation, weakness, pale mucous membranes, rough, easily detached and lusterless coat. The study showed that the therapeutic response of Haemonchosis to treatment by Closantel were (99.2%, 99.7%, 100%) after 7, 14, 21 days respectively. Results of blood picture revealed significant elevation in total erythrocytes count, hemoglobin concentration, packed cell volume, and decrease total leukocytes count, after 7, 14, 21 days, respectively after treatment with Closantel. |