コイの銅蓄積に及ぼすアスコルビン酸投与の效果

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This paper deals with the effect of dietary L-ascorbic acid (AsA) on the accumulation of copper in tissues of carp exposed to the copper solution ag a level of 0.05ppm for 9 weeks. The copper content in the hepatopancreas of carp fed the AsA- supplemented diet significantly decreased as compared to that of carp fed the AsA-free diet. Prevention of copper accumulation by AsA intake was also observed in the gills, kidney, intestine and vertebrae. The AsA copper. Further, the accumulation of copper in the hepatopancreas caused a decrease in the hepatic L-gulonolactone oxidase activity. These results indicated that AsA prevents the accumulation of copper and that accumulated copper decreases the AsA level in the hepatopancreas by inhibiting the biosynthesis of AsA in carp.
公益社団法人日本水産学会の論文