Effects of Supplementary Vitamin C and E to Moist Pellet Diet on Growth and Body Composition of Juvenile Olive Flounder, Paralichthys olivaceus

This study was conducted to investigate the supplementary effects of vitamin C and E to moist pellet on growth and body composition in juvenile olive flounder (Paralichthys olivaceus). Four groups of diet made : moist pellet (MP) diet group was used as the control group where the ratio of raw feed and commercial compound meal is 5:5 vitamin C added group (VC), vitamin I added group (VE) and vitamin C and I added group (VCE). The supplementary amount of vitamin C and E corresponded to 1000 mg/kg (dry wt.) and 220mg/kg (dry wt.), respectively. Vitamin C was destroyed and vitamin E was destroyed for manufacturing process. After 8 weeks feeding trial, weight gain was in MP group, while it ranged from 180.5 to in the VC, VE and VCE group. Feed efficiency was in MP group, whereas it ranged from 78.7 to in the VC, VE and VCE group, weight gain and feed efficiency of fish fed vitamin supplemented diets were significantly higher than control group and no significant difference among the vitamin added groups was observed (p>0.05). There were no significant differences in moisture, crude protein, crude lipid, crude ash, condition factor (CF), hepatosomatic index (HSI), and visceraweight index (VWI) of body composition. Hemoglobin (Hb) was in MP group, whereas in VC group, in VE group and in VCE group; Hb was significantly higher in the vitamin added groups than the control group (p