Research Article
Variability in the Response of Yankasa Sheep to Graded Experimental Infections of Haemonchus contortus
National Animal Production Research Institute, Ahmadu Bello University, P.M.B. 1096, Zaria, Nigeria
E.O. Oyedipe
National Animal Production Research Institute, Ahmadu Bello University, P.M.B. 1096, Zaria, Nigeria