Daudu, O.M., Adukwu, F.A., Avong, B.A., Onimisi, P.A., Eliagwu, S, and Makinde, O.J. “Effect of Supplemental Copper on Growth, Haematology and Reproductive Performance of Japanese Quails”. Tropical Animal Production Investigations, vol. 18, no. 1, June 2025, pp. 34-41, http://journals.ui.edu.ng/index.php/tapi/article/view/1665.