英语翻译目的】：本试验通过比较相同品种、相同体况的商品蛋鸡采食不同蛋白能量水平的配合饲料后生产性能的差异,筛选出最适合该
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Objective】: In this experiment, comparing the same species, the same body condition of the commercial layer feed with different protein and energy levels of the differences in performance after the feed, selected the most suitable varieties of the egg protein and energy levels of the feed. For the future management of lower production cost formula to improve feed quality, increase economic efficiency reference. Methods: The test used 550 days of the Roman powder 500 laying hens, were randomly divided into three treatment groups A, B, C, each treatment five repeated Au0026#39;s high-energy diets were low protein (energy 2580 Kcal / kg, protein 16.96%) B of the high-energy high-protein (energy
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