本论文第二部分主要研究了四种不同精粗比典型日粮条件下泌乳奶牛瘤胃氮素代谢、小肠蛋白质的消化吸收及其对生产性能的影响。
The second part was mainly conducted to study the effects of four typical diets on rumen nitrogen metabolism, protein digestion and absorption in the small intestine, and dairy cow's milk performance.
膳食纤维对于蛋白质代谢及氮平衡的影响不大，但可减少脂类和碳水化合物的吸收及利用。
Dietary fiber does not have significant effect on protein metabolism and nitrogen balance, but some fiber can decrease the absorption and availability of lipids and carbohydrates.
从丝素膜的溶解性及红外吸收光谱变化中，分析了有机溶剂对丝素蛋白质溶液的影响。
The change of fibroin protein influenced by organic solute was analysed with the solubility of fibroin film and change of infrared absorption spectrum.
有许多的因素影响钙的吸收和转运，如维生素d、蛋白质、甲状旁腺素相关蛋白、钙磷比例等。
A lot of factors affect calcium absorption and transport, such as Vitamin d, fat, Parathyroid hormone related peptide, ratio of calcium and phosphorus and so on.
此时，蛋白质含量，氨基酸组成，消化性能以及氨基酸吸收之间的相互作用均会影响生物学价值的测定。
In this case, the interacting variables of protein level, amino acid composition, digestibility, and absorption of the amino acids all contribute to determine biological value.
第二、降低蛋白质的吸收有可能影响肾衰竭的过程。
Second, reduced protein intake may influence the course of renal failure.
第二、降低蛋白质的吸收有可能影响肾衰竭的过程。
Second, reduced protein intake may influence the course of renal failure.
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