Nwokolo, 1986. Anim. Feed Sci. Technol., 15 (1): 1-6 Document reference Nwokolo, E., 1986. A comparison of metabolizable energy content of eight common feed ingredients determined with young guinea fowls (keets) and pullet chicks. Anim. Feed Sci. Technol., 15 (1): 1-6Web http://www.sciencedirect.com/science/article/pii/0377840186900325Citation key Nwokolo, 1986