栄養と食糧
Online ISSN : 1883-8863
ISSN-L : 0021-5376
白米にリジンのほかにスレオニンを添加する必要があるかの研究
稲垣 長典大西 真澄津行 恵子菅原 すみ蕭 舜香
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1963 年 16 巻 4 号 p. 264-269

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Sixty albino rats with an initial weight of 78g were divided into 6 groups and were fed for five weeks with rice powder diets of the following protein levels as basal diets supplemented with 0.2% of L-lysine: the protein levels of the diets were 5.6%(in rice powder) and, 10.0 and 15.0%(obtained respectively the proper amounts of alkali extract of rice protein).
The effects of the supplemented 0.25% of L-threonine to 5.6, 10.0 and 15.0% protein diets above cited were examined by the comparison of the growth rate, liver weight, liverf at and nitrogen levels. On the same level the significant effect of supplemented threonine was observed, but on the other levels no effects were observed.
The liver nitrogen level was higher in the groups of higher protein levels, but no effects of supplemented threonine were observed.
The liver fat level on 5.6% protein level in non-threonine-supplementation group was siginificantly higher than that in the threonine-supplemented group, but on the other levels no difference was observed.
The activities of serum glutamic oxaloacetic transaminase were higher in the gr oups ofl ower protein levels. The significant effect of supplemented threonine on 5.6% protein level was observed, but no effects were observed on the other levels.

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