飼料中のアルギニン欠乏がヒナの成長におよぼす影響

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書誌事項

タイトル別名
  • The Effect of Arginine Deficient-diet on Growth in Chicks
  • シリョウチュウ ノ アルギニン ケツボウ ガ ヒナ ノ セイチョウ ニ オヨボ

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抄録

A line of White Leghorn breed having unusually high level of ornithine transcarbamylase (OTC) EC 2. 1. 3. 3, which was suggested as a genetic variant, has been observed and the enzymatic activity was 50 to 100 fold higher than that of normal chicken breeds. The purpose of this study was to investigate the effect of arginine deficiency on the growth in the variant and normal chicks. One hundred and one newly hatched chicks, which were obtained from the cross of OTC deficient breed (California Gray) female with one male which was a hybrid of California Gray breed female and White Leghorn B strain male possessing genotypically homozygote of the variant OTC gene, were randomly divided into four groups irrespective of their sex, i. e., arginine deficient-diet, 1% α-aminoisobutyric acid (AIB) supplemented diet, 1% AIB and 1% L-ornithine supplemented diet and control diet group. These backcross chicks could be divided into high OTC activity group or the low activity group, in the ratio of one to one. These chicks were fed each experimental diet for 28 days ad libitum. The growth of chicks on the deficient diet was severely retarded and the weight gains of chicks of the deficient diet reached only 37 to 38% of those of the control chicks. Great variations of the growth rate were observed in the chicks fed the deficient diet. If the arginase levels are plotted against the growth rate of chicks receiving the deficient diet, there appears to be a good relationship between kidney arginase level and growth rate. The correlation coefficient was -0.89. Feeding of AIB lowered kidney arginase activity and the growth of chicks receiving the diet was improved. The percentage of the weight gain reached 60% of that of the control. Differences in growth rate between the chicks having high OTC activity and the low one were not observed, neither by controlling kidney arginase activity by AIB nor by feeding of arginine deficient-diet. Relationships between the activities of the enzymes concerned with arginine and ornithine metabolism and that of variant OTC were not observed. Feeding excess dietary levels of AIB and L-ornithine noticeably increased kidney variant OTC activity.

収録刊行物

  • 日本畜産学会報

    日本畜産学会報 47 (5), 246-253, 1976

    公益社団法人 日本畜産学会

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