Cyprian Alphonsus Ahmadu Bello University, Zaria Nigeria
G.N. Akpa Ahmadu Bello University, Zaria Nigeria
N.P. Achi National Animal Production Research Institute, Shika, Zaria Nigeria
I.M. Sam Akwa Ibom State University Ikot Akpaden, Mkpat Enin Akwa Ibom State Nigeria
I. Abdullahi National Animal Production Research Institute, Shika, Zaria Nigeria