结果表明，玉米粒度不影响DMI、生长性能以及日粮DM、能量、粗蛋白质、中性洗涤纤维和酸性洗涤纤维的全消化道表观消化率（P>0.05）。
The results showed that corn particle size did not affect DMI, growth performance and the total tract apparent digestibility of DM, GE, CP, NDF and ADF (P>0.05).
各原料氨基酸表观消化率的变化趋势与蛋白质表观消化率的趋势一致。
The apparent digestibility of amino acids had a positive correlation with apparent digestibility of crude protein for a given test ingredient.
回肠内源氮或内源性粪氮损失是影响蛋白质表观消化率、增加动物粪氮排泄量的重要因素。
Endogenous nitrogen loss in digestive gut is an important factor affecting apparent digestibility of protein and increasing feces nitrogen excrement.
回肠内源氮或内源性粪氮损失是影响蛋白质表观消化率、增加动物粪氮排泄量的重要因素。
Endogenous nitrogen loss in digestive gut is an important factor affecting apparent digestibility of protein and increasing feces nitrogen excrement.
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