Owen OJ, Briggs BP, Gunn HH. Performance of broiler chickens administered graded levels of bitter kola (Garcinia kola, Heckel) as feed additive. NJAP [Internet]. 2020Dec.19 [cited 2026Sep.22];46(5):107 -. Available from: https://mail.njap.org.ng/index.php/njap/article/view/283