치어기 조피볼락 사료내 구기자 첨가효과

Abstract

A 8-week feeding trial was conducted to investigate the effects of dietary supplementation of Kugija (Lycium chinense) on the growth and immunological response in juvenile Korean rockfish (Sebastes schlegeli). Six experimental diets were supplemented with Kugija at 0, 0.1, 0.5 1.0, 3.0 and 5.0% () on a dry-matter basis. After 2 weeks, triplicate groups of 30 fish initially averaging 3.360.2 g (meanSD) were randomly distributed into the aquarium and were fed one of the experimental diets for 8 weeks. By the end of the 8-week feeding trial, fish fed the and diets exhibited a higher weight gain and specific growth rate than fish fed and diets (P diet showed significant higher value than that of fish fed the , and diets (P diet was significantly higher than that of fish fed the and diets (P and diets was significantly higher than that of fish fed the diet (P and diets was significantly lower than in fish fed the other diets (P diet was significantly lower than those of fish fed the and diets (P and diets. Lysozyme activity of fish fed the and diets was significantly higher than that in fish fed the and diets (P diet was significantly higher than those of fish fed the and diets (P and diets. Fish fed Kugija showed lower early mortality than fish fed a Kugija-free diet upon challenge with Vibrio ordalii. The results suggest that feeding of Kugija (Lycium chinense) enhances growth, non-specific immunity and disease resistance in juvenile Korean rockfish.