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 [Internet]. 2026 Mar. 25 [cited 2026 Nov. 14];53(2):11-28. Available from: https://njap.org.ng/index.php/njap/article/view/9193