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食餌中 蛋白質 含量差에 依한 白鼠 營養學的 硏究

A Study on Nutritional Effect of Protein Amount in Diet

공중보건잡지 1973년 10권 2호 p.319 ~ 325
김을상,
소속 상세정보
김을상 (  ) - 서울대학교 보건대학원

Abstract


In order to observe the nutritional effects of protein amount in diet, on the growth rate and the chantge in alkaline phosphatase activities, three groups of Donryu rats were fed with different amounts of casein mixes (10%), 18% and 27%) for 14-week of the experimental period.
This experiment is summarized as follows:
1) During this period of experiment, the most outstanding effects of growth by the different amounts of Protein in diet were observed till 15-week of age; the group fed with 27% casein diet showed significant difference (p<0.05) when compared with the group fed on the standard diet, 18% casein content.
2) Recording the maximum functional activity at the time of 5-week of age, the serum alkaline phosphatase activity was getting more inactive and finally became stabilized in 14-week.
3) IN the relationship between the amount of Protein in diet and the serum alkaline phosphatase activity, it was found that there was more fluctuation diet group than low protein diet group (10% Casein). There was, however, no significant difference in the time when the maximum activities of alkaline phosphatase appeared among the three study groups.
4) The changes in alkaline phosphatase activity in different organs followed the same pattern of serum, that is the maximum alkaline phosphatase activities in liver, lung, kidney, bone and intestine were appeared around 5-week of age, and gradually decreased reaching to stabilized level around 10-week of age. The results indicate the fact that protein has an important nutritional effect upon the growth of living beings, playing an important role in metabolism.

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