O.J. Ibu, J.O.A. Okoye, S.S. Baba, S.V.O. Soyinka, K.F. Chah, J. Antiabong, D. Eze, E.A. Salihu and S.B. Oladele
International Journal of Poultry Science 9 ( 8 ): 791 - 794 , 2010