Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Evaluation of Extruded Pellets as a Growing Diet for Adult Flounder Paralichythys olivaceus

넙치 성어기 배합사료 및 생사료의 사육효과 비교

  • Kim Kyoung-Duck (Aquafeed Research Center National Fisheries Research & Development Institute) ;
  • Kang Yong-Jin (Aquafeed Research Center National Fisheries Research & Development Institute) ;
  • Lee Hae-Young (Aquafeed Research Center National Fisheries Research & Development Institute) ;
  • Kim Kang-Woong (Aquafeed Research Center National Fisheries Research & Development Institute) ;
  • Kim Kyong-Min (Jeju Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Lee Sang-Min (Faculty of Marine Bioscience and Technology, Kangnung National University)
  • 김경덕 (국립수산과학원 양식사료연구센터) ;
  • 강용진 (국립수산과학원 양식사료연구센터) ;
  • 이해영 (국립수산과학원 양식사료연구센터) ;
  • 김강웅 (국립수산과학원 양식사료연구센터) ;
  • 김경민 (국립수산과학원 제주수산연구소) ;
  • 이상민 (강릉대학교 해양생명공학부)
  • Published : 2006.08.01
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Abstract

This study was conducted to evaluate extruded pellets (EP) for growth of adult flounder by comparing with raw fish-based moist pellet (MP). Two replicate groups of 150 fish per each tank (initial mean weight 329 g) were fed one of seven EP (EP1, EP2, EP3, EP4, EP5, EP6 and EP7) and a MP for 8 months. Survival of fish fed the MP was not significantly different from that of fish fed the EP1, EP5 and EP7, but significantly higher than that of fish fed the EP2, EP3, EP4 and EP6 (P<0.05). Weight gain of fish fed the MP was significantly lower than that of fish fed the EPI (P<0.05), but not significantly different from that of fish fed EP2, EP3, EP4, EP5, EP6 and EP7. Feed efficiency of fish fed the MP was significantly lower than EP1, EP3, EP4, EP5 and EP6 (P<0.05), but not significantly different from that of fish fed EP2 and EP7 Feed supply (kg/tank) of fish fed the MP was significantly higher than that of fish fed all EP (P<0.05). Condition factor of fish fed the MP was not significantly different from that of fish fed all EP. The contents of moisture, crude protein and lipid in dorsal muscle and whole body was not significantly different among the groups. It is concluded that the dietary formulation used in the EP1, EP3, TP4, EP5 and EP6 can be applied in the practical extruded pellet feeds for adult flounder (329-680g).

본 연구는 넙치 성어기 사료로 양식현장에서 많이 사용하고 있는 생사료를 배합사료로 대체하기 위하여 부상배합사료와 생사료의 사육효과를 비교하고자 수행되었다 평균체중 329 g의 넙치를 6종류의 실험배합사료(EP1-EP6),시판사료(EP7)및 생사료(MP)로 1일 2회 반복으로 공급하며 8개월간 사육 실험하였다. 사육기간 동안의 생존율은 $63\sim78%$ 범위였으며, 증체량은 MP 실험구가 EP1 실험구 보다 낮았으나, EP2-EP7 실험구와는 차이가 없었다. 사료효율은 MP 실험구가 EP1, EP3, EP4, EP5 및 EP6 실험구 보다 낮았으나, EP2 및 EP7 실험구와는 차이가 없었다. 단백질효율은 모든 EP 실험구들이 MP 실험구 보다 높았다. 사료섭취량은 MP실험구가 EP실험구들에 비해서 높았지만, EP실험구간에는 차이가 없었다. 어체의 비만도는 모든 EP 실험구들이 MP 실험구와 차이가 없었다. 등근육 및 전어체의 수분, 단백질 및 지질 함량은 모든 실험구간에 차이가 없었다. 이상의 결과로 볼 때, $329\sim680g$의 넙치 성어 사육을 위하여 MP 대신 EP1, $Ep3\sim6$를 사용하여도 좋을 것으로 판단된다.

Keywords

References

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