给生长中的大鼠和成年大鼠喂食含有不同必需氨基酸与总氨基酸比例的日粮时的体重变化和氮效率。

Body weight change and nitrogen efficiencies in growing and adult rats fed diets containing various proportions of essential amino acids to total amino acids.

作者信息

Matsuno N, Yamaguchi M, Saiki R, Tamura E

出版信息

J Nutr Sci Vitaminol (Tokyo). 1976;22(4):321-31. doi: 10.3177/jnsv.22.321.

DOI:10.3177/jnsv.22.321

Abstract

By using amino acid mixtures, a comparative study of nutritional effects of dietary essential amino acid proportions (EA %) has been made between growing and adult rats. Included were adult rats which were repleting from an 8-day protein depletion. It was shown that for growing rats at least 55 EA% was required to attain the maximum values of growth, nitrogen balance, nitrogen balance efficiency (nitrogen balance/nitrogen intake) and protein efficiency ratio (PER). The maximum biological value was found to be 94 at the 50 EA% level. For adult rats, at least 40 EA% was required to gain the maximum values of nitrogen balance and nitrogen balance efficiency under both maintenance and repletion. The biological values were found to be nearly 60 and 80 for maintenance and repletion, respectively.

摘要

通过使用氨基酸混合物，对生长大鼠和成年大鼠饮食中必需氨基酸比例（EA%）的营养效应进行了比较研究。其中包括从8天蛋白质耗竭状态恢复的成年大鼠。结果表明，对于生长大鼠，至少需要55%的必需氨基酸比例才能达到生长、氮平衡、氮平衡效率（氮平衡/氮摄入量）和蛋白质效率比（PER）的最大值。在50%必需氨基酸比例水平时，最大生物学价值为94。对于成年大鼠，在维持和恢复状态下，至少需要40%的必需氨基酸比例才能获得氮平衡和氮平衡效率的最大值。维持和恢复状态下的生物学价值分别约为60和80。