Effects of Dietary Copper Supplementation on Laying Performance, Egg Quality and Plasma Cholesterol Fractions in Laying Ducks

A.M. Fouad, Y. Li, W. Chen, D. Ruan, S. Wang, W.G. Xie, Y.C. Lin and C.T. Zheng

Pakistan Journal of Nutrition 15 ( 9 ): 878 - 882 , 2016