日粮不同锌及维生素A水平对肉仔鸡体内维生素A和维生素E代谢的影响
张春善,赵志恭,索兰弟,卫建民,闫素梅
Effect of dietary in and vitamin A levels on vitamin A and E metabolism in broilers
动物营养学报 . 2001, (04): 43 -0 .