Choline in the Nutrition of Fishes. I. On the Effect of Choline added to the Ration of High Fat and Low Protein
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概要
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Fifteen gold fishes, 2-5g, were classified into three groups, each containing five, group I and II were supplied 3 gr. of high fat and low protein ration, indicated by the table 1 and 2 respectively. Group III was supplied above-mentioned ration and 0.5mg. choline hydrochloride every day, and fed from Oct. 27th to Nov. 16th in the glass vessels. Initial and final weight of fishes of three groups are shown in the table 3. Choline supplied group increased their weight, comparing to that of no choline groups. Analytical results of viscera of the group I, III and control fishes are shown in the table 4, 5 and 6. The percentage of viscera to the body weight of choline supplied group is smaller than that of no choline groups. It seemed that the normal fat metabolism was performed by the addition of choline. But in both groups so called fatty liver was not observed. Phosphatide content of viscera of choline supplied group is greater than no choline group. From these results I have conoluded that choline is one of the essential factor for normal growth and metabolism of young gold fish.
- 社団法人 日本水産学会の論文