
日粮酪氨酸、苯丙氨酸、色氨酸水平和比例对泰和乌骨鸡生产性能及组织黑色素含量的影响
Effects of Dietary Tyrosine, Phenylalanine and Tryptophan Levels and Their Ratios on Growth Performance and Melanin Contents in Tissues of Taihe Silky Fowls
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