肉用种母鸡日粮维生素A水平对种蛋及雏鸡体内维生素A含量的影响
蔡辉益;张姝
Effects of Different Levels of Dietary Vitamin A for Breeding Hens on Vitamin A Content of Egg Yolk and Newly Hatched Chicks
动物营养学报 . 1993, (01): 41 -50 . 

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