1. Diagnostic and Extension Department, National Veterinary Research Institute, Vom, Nigeria
2. Department of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
3. Veterinary Teaching Hospital, Ahmadu Bello University, Zaria, Nigeria
4. Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
5. Department of Animal Health and Production, College of Agriculture, Bauchi, Nigeria