Under the low nutritional level diet condition, the fattening cattles were fed with the animal feed additive IBDU-1 as the protein complement.
在低营养水平日粮条件下，利用饲料添加剂IBDU - 1作为蛋白质补充料对育肥牛进行饲喂试验。
According to the characteristic of the ruminant protein and fat metabolism, Detailed explaining the influence of protein and fat level on the digestibility of crude fiber in ruminant diet.
本文根据反刍动物蛋白质、脂肪营养代谢的特点，较为详尽的阐述了日粮中蛋白质和脂肪水平对粗纤维消化率的影响。
Under the same starch level in the diet, the amylase activity of the intestine in flounder doesn't become ruly with the changes of the ratio of dietary energy to protein.
在饲料中同一淀粉水平下，不同能量蛋白比的变化，未引起肠道淀粉酶活性呈现规律性变化。
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