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조피볼락(Sebastes schlegeli) 치어의 배합사료 적정 공급률과 공급횟수
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  • 조피볼락(Sebastes schlegeli) 치어의 배합사료 적정 공급률과 공급횟수
저자명
이진혁,김강웅,이봉주,박건현,이준호,윤현호,배승철,Lee. Jin-Hyeok,Kim. Kang-Woong,Lee. Bong-Joo,Park. Gun-Hyun,Lee. Jun-Ho,Yun. Hyeon-Ho,Bai. Sungchul
간행물명
한국수산과학회지
권/호정보
2013년|46권 6호|pp.753-760 (8 pages)
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한국수산과학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Two feeding trials were conducted to investigate the effects of feeding rate and frequency on growth performance and body composition of juvenile Korean rockfish Sebastes schlegeli reared at $15.0{pm}0.3^{circ}C$. In the first trial, three replicate fish groups averaging $2.07{pm}0.03g$ were fed a commercial diet with one of seven different daily feeding rates: 1.00%, 2.00%, 2.50%, 2.75%, 3.00%, 3.25%, and satiation (3.34%) based on body weight (BW). After four weeks of feeding, fish fed the 3% diet showed significantly higher weight gain (WG) and feed efficiency (FE) than fish that received the other feeding rates. In the second trial, the optimum feeding frequency was evaluated with three replicate fish groups averaging $2.04{pm}0.03g$. Fish were fed a commercial diet at 2.87% BW with six different daily feeding frequencies: 2, 3, 4, 5, 7, or 9 meals. After four weeks of feeding, WG, specific growth rate, FE, and protein efficiency rate in fish fed 3 meals $d^{-1}$ were significantly higher than those of fish fed 7 or 9 meals $d^{-1}$. In both feeding trials, proximate composition of the entire body changed depending on the feeding rate or frequency. A broken-line regression analysis based on weight gain suggested that the optimum daily feeding rate and frequency for juvenile Korean rockfish at $15^{circ}C$ was 2.9% BW $d^{-1}$ and 2-3 meals $d^{-1}$, respectively.