FOUAD, A.M.; LI, Y.; CHEN, W.; RUAN, D.; WANG, S.; XIE, W.G.; LIN, Y.C.; ZHENG, C.T. Effects of Dietary Copper Supplementation on Laying Performance, Egg Quality and Plasma Cholesterol Fractions in Laying Ducks. Pakistan Journal of Nutrition, Pakistan, v. 15, n. 9, p. 878–882, 2016. DOI: 10.3923/pjn.2016.878.882. Disponível em: https://pjnonline.org/pjn/article/view/2398. Acesso em: 30 aug. 2025.