O.J. Ibu, J.O.A. Okoye, E.P. Adulugba, K.F. Chah, S.V.O. Shoyinka, E. Salihu, A.A. Chukwuedo and S.S. Baba
International Journal of Poultry Science 8 ( 6 ): 574 - 578 , 2009