マダイのビタミン要求に関する研究-I
イノシトール要求と餌料中のグルコース量との関係
1971 年 37 巻 2 号 p. 149-155
詳細
1971 年 37 巻 2 号 p. 149-155
The inositol requirements of fresh water fishes, trout and carp, have been studied, but similar studies on marine fishes have not been up to date. Also, no study on the relationship between inositol requirements in fish and the carbohydrate content in their diet has been reported. Therefore, an attempt has been made and the present paper deals with inositol requirements of red sea bream, Chrysophyrys major fin-gerling and the relationship it has with the glucose level in diet.
The results obtained can be summarized as follows:
1) As for red sea bream fed with a diet B containing 10% of glucose, the body weight gain, the inositol content in liver and the activity of cholinesterase in serum were correlative with the inositol content in diet respectively. The requirements for inositol have been estimated to be about 55-90 mg per 100g of the diet, on the basis of the body weight gain and the inositol content in liver.
2) As for red sea bream fed with a diet C containing 40% of glucose, the inositol content in liver and the activity of cholinesterase in serum were correlative with the inositol content in diet. The requirements for inositol was found to be about 90 mg per 100 g of diet on the basis of the inositol content in liver.
3) The requirement for inositol at the 40% level of glucose in diet C was nearly equal to that at the 107, level of glucose in diet B. From these results, it is con-cluded that the inositol requirement of red sea bream fingerling fed with a diet containing 10-40% of glucose is 55-90 mg per 100g of diet.
4) Deficiency symptoms of inositol were characterized by the loss of appetite and retarded growth.
