Effects of The Graded Levels of Cholecalciferol (Vitamin D3) on the Haematological Characteristics and serum enzymes of broilers in the hot humid southern Nigeria. Nigerian Journal of Animal Production [Internet]. 2024 Jul. 9 [cited 2026 Nov. 7];:1457-9. Available from: https://mail.njap.org.ng/index.php/njap/article/view/6585