Measures taken to diminish the requirement for homologous blood in electie arthroplasty procedures are therefore worthwhile. 因此有必要在关节置换手术中采取措施减少异体血的需要量。
Dietary nutrient digestion and nitrogen metabolism in the experimental animal were determined, and maintenance protein requirement for weaning sika deer was suggested. 通过对营养消化代谢参数的测定，研究了日粮蛋白质水平对断乳仔鹿氮消化和氮沉积规律及营养物质消化代谢的影响，并初步确立了断乳仔鹿的蛋白质维持需要量。
