Akpan H, Udosen E, Udofia A, Akpan E, Joshua A. The Effect of Phytase and Zinc Supplementation on Palm Kernel Cake Toxicity in Sheep. Pak. J. Nutr. [Internet]. 2005 Apr. 15 [cited 2025 Jul. 1];4(3):148-53. Available from: https://pjnonline.org/pjn/article/view/232