Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Effects of Different Numbers of Feeding Days and Feeding Rate on Growth of Growing-out Flounder Paralichthys olivaceus

사료 공급일수 및 공급율이 육성기 넙치(Paralichthys olivaceus)의 성장에 미치는 영향

  • Kim, Kyoung-Duck (Aquafeed Research Center, National Fisheries Research & Development Institute) ;
  • Kim, Kang-Woong (Aquafeed Research Center, National Fisheries Research & Development Institute) ;
  • Bae, Ki-Min (Aquafeed Research Center, National Fisheries Research & Development Institute) ;
  • Son, Maeng Hyun (Aquaculture Management Division, National Fisheries Research & Development Institute) ;
  • An, Cheul Min (Aquafeed Research Center, National Fisheries Research & Development Institute)
  • 김경덕 (국립수산과학원 사료연구센터) ;
  • 김강웅 (국립수산과학원 사료연구센터) ;
  • 배기민 (국립수산과학원 사료연구센터) ;
  • 손맹현 (국립수산과학원 양식관리과) ;
  • 안철민 (국립수산과학원 사료연구센터)
  • Received : 2012.05.14
  • Accepted : 2012.10.17
  • Published : 2012.10.31
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Abstract

This study evaluated the effects of the number of feeding days and feeding rate on the growth of growing-out flounder Paralichthys olivaceus. Three replicated groups of fish ($141{\pm}1.9g$) were hand-fed a commercial feed under different feeding regimes for 9 weeks. Fish in group 6F-1S were fed to satiation twice daily for 6 consecutive days and starved for 1 day. Fish in groups 4F-1S and 3F-1S were fed to satiation twice daily for 4 and 3 days, respectively, and starved for 1 day. Fish in group 6F-90% were fed a diet of 90% of 6F-1S twice daily for 6 consecutive days and starved for 1 day. The weight gain, feed efficiency and daily feed intake of the fish groups in 4F-1S and 3F-1S were not significantly different from those of group 6F-1S. The weight gain and feed efficiency of fish in group 6F-90% were not significantly different from those of group 6F-1S. The results of this study suggest that the growth of growing-out flounder fed to satiation twice daily for 4 or 3 days after starving 1 day was similar to that of fish fed to satiation for 6 days, and that the proper feeding rate for growth could be lowered to 90% of satiation without growth suppression.

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References

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