Akpasa, C.C. , Njoku, C.P. , Oke, O.E. , Afuye, A.T. , Adeyemi, O.A. , Idowu, A.O. and Sanwo, A.O. 2026. Evaluation of Piper guineense (West African black pepper ) as a feed additive on carcass yield, meat colour and lipid profile of broiler chickens under two housing types. Nigerian Journal of Animal Production. 53, 2 (Mar. 2026), 11–28. DOI:https://doi.org/10.51791/njap.v53i2.9193.