Effects of Feeding Frequency on Grwoth, Feed Efficiency and Body Composition of Juvenile Korean Rockfish (Sebastes schlegeli)

A 15-week feeding experiment was conducted to determine the effects of feeding frequency from 2 different formulated diets on growth, feed efficiency and body composition in juvenile Korean rockfish (Sebastes schlegeli). Duplicate groups of the 30 fish averaging 25 g were fed the control diet containing fish meal and the experimental diet containing fish meal, meat meal, corn gluten meal, soybean meal, and blood meal as protein sources at different feeding frequencies of 2 times daily, once a day in the morning or afternoon, once in 2 days, or given no food. Growth and feed efficiency of the fish were affected by diets (P0.05). Feed intake ( of body wt.) of the fish fed once in 2 days was lower than that of the fish fed 2 times daily and once a day (P0.05). These results indicate that once a day or once in 2 days feeding regimen must be more effective and economical than that of 2 times daily for juvenile Korean rorkfish.