F. .M. El-Hag Agricultural Research Corporation (ARC), El-Obeid Research Station, PO Box 429 El-Obeid Sudan
Ibrahim Bushara Department of Animal Production, Faculty of Natural Resources and Environmental Studies, University of Kordofan Sudan
Muna M.M. Ahamed 3Institute of Environmental Studies, University of Khartoum, Khartoum Sudan
K.E. Hag Mahmoud State Ministry of Agriculture, Animal Resources and Irrigation, Kordofan State, El-Obeid Sudan
M.A. M. Khair 5Agricultural Research Corporation (ARC), Wad Medani Sudan
O.E. Elbushra Food Research Centre, Shambat Sudan