O. Alayande, M., Department of Parasitology and Entomology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto-Nigeria
O. Alegbeleye, W., Department of Fisheries and Aquaculture, Federal University of Agriculture, Abeokuta, Nigeria
O. Eisa, M., Department of Animal Production, Faculty of Agriculture, Omdurman Islamic University, Sudan
O. Falohun, O., Department of Veterinary Microbiology and Parasitology, University of Ibadan, Nigeria
O. Oyedipe, E., National Animal Production Research Institute, Zaria, Nigeria
O. Oyedipe, E., Department of Veterinary Anatomy; Usmanu Danfodiyo University, Sokoto, Nigeria

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