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Abstract ▼ AI-Helper

This experiment was conducted to develop an experimental model and a semipurified diet for vitamin C requirement study in juvenile Korean rockfish, Sebastes schlegeli. Prior to the start of the feeding trial, fish were fed the control diet for four weeks to deplete their body reserves of vitamin C, ...

This experiment was conducted to develop an experimental model and a semipurified diet for vitamin C requirement study in juvenile Korean rockfish, Sebastes schlegeli. Prior to the start of the feeding trial, fish were fed the control diet for four weeks to deplete their body reserves of vitamin C, Then fish were divided into six groups and given one of the laboratory developed semipurified diets supplementing either 0 (control), 25, 50, 75, 150, o. 1500 mg L-ascorhic acid (AA)/kg diet for eight weeks. Fish fed control diet had lower hematocrit than did fish from groups fed the other diets (P<0.05). Also these fish had significantly lower percent weight gain (WG), feed conversion ratio (FCR) and muscle AA than did fish fed diets containing 150 and 1500 mg AA/kg diet (P<0.05). Diet analysis of vitamin C showed that the control diet had 39,7 mg AA/kg diet. Therefore, these fingings suggest that the experimental model and the semipurified diet can be useful for vitamin C requirement study, and the dietary vitamin C requirement is greater than 40 mg AA/kg diet, but 150 mg AA/kg diet is adequate for the maximum growth in juvenile Korean rockfish.

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