by Ibekwe, H.A., Bikom, P.M.
Published in The Indian journal of veterinary research (2019)

by MEREMIKWU, V.N., IBEKWE, H.A., ESSIEN, A.
Published in World's poultry science journal (01.09.2013)

by Eteng, M.U, Ibekwe, H.A, Amatey, T.E, Bassey, B.J, Uboh, F.U, Owu, D.U
Published in Nigerian journal of physiological sciences (21.04.2010)