Abdel Moniem M.A. El hag Agriculture Research Corporation (ARC) El- Obeid Research Station, Sudan. P.O. Box 429 Sudan
Ali A. hassabo School of Animal Production, Faculty of Agricultural Technology and Fish Science, University of Al Neelain Sudan
Ibrahim Bushara Department of Animal Production, Faculty of Natural Resources and Environmental Studies, University of Kordofan, Sudan Sudan
M.O. Eisa Department of Animal Production, Faculty of Agriculture, Omdurman Islamic University Sudan
I.A.Ishag Ishag Department of Animal Breeding and Genetics, Faculty of Animal Production, University of Khartoum Sudan