The excretion of endogenous amino acids is an important parameter in calculating protein true digestibility and in estimating protein and amino acids requirement.
内源氨基酸的排泄量是计算饲料真可消化率以及析因法估计动物蛋白质、氨基酸需要量的重要参数。
The results showed that:the apparent and true digestibility of fecal crude protein were 89.67% and (96.85%);
结果表明，粪分析法所测大米粉的粗蛋白表观消化率为89.67%，真消化率为96.85%；
These results showed that in the soybean diets of different Ca and P levels, apparent digestibility of Ca and P vary a lot, but true digestibility of Ca and P are relatively stable.
用表观消化率进行饲料配方，会导致钙、磷生物学效价的低估，造成钙、磷过量添加和猪粪钙、粪磷的增加。
These results showed that in the soybean diets of different Ca and P levels, apparent digestibility of Ca and P vary a lot, but true digestibility of Ca and P are relatively stable.
用表观消化率进行饲料配方，会导致钙、磷生物学效价的低估，造成钙、磷过量添加和猪粪钙、粪磷的增加。
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