한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제35권4호
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  • Pages.315-320
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  • 2002
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  • 0374-8111(pISSN)
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  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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CLA 급이가 우럭치어 성장에 미치는 영향

Effect of Conjugated Linoleic Acid (CLA) in Growth of Larval Rockfish (Sebastes schlegeli)

  • 최병대 (경상대학교 해양생물이용학부/해양산업연구소) ;
  • 강석중 (경상대학교 해양생물이용학부/해양산업연구소) ;
  • 염말구 (경상대학교 해양생산학과) ;
  • 하영래 (경상대학교 응용화학식품공학부)
  • Choi Byeong Dae (Division of Marine Bioscience and Institute of Marine Industy, Gyeongsang National University) ;
  • Kang Seok Joong (Division of Marine Bioscience and Institute of Marine Industy, Gyeongsang National University) ;
  • Youm Mal Gu (Department of Marine Production Technology, Gyeongsang National University) ;
  • Ha Yeong Lae (Division of Applied Chemistry and Food Technology, Gyeongsang National University)
  • 발행 : 2002.07.01
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초록

통영을 중심으로 한 우럭생산량은 연간 1,813M/T에 이르고 있으며, 과잉생산에 대한 우려가 제기되고 있다. 이와 같은 우려를 개선시키고 기능성 어류에 대한 소비자의 기대감을 충족시키기 위하언 성장촉진, 항암, 면역증강, 혈중 LDL 함량 저하효과를 가진 것으로 알려져 있는 CLA를 이용한 기능성 우럭생산의 가능성을 검토하였다. Artemia 영양강화시 CLA를 $0.5\~5.0\%$ 첨가하였을 경우 Artemia중 지방산조성의 변화를 조사한 결과 CLA 첨가량이 증가할수록 CLA 함량은 높아졌고, 동시에 Artemia 특유의 지방산조성을 나타내어 지방산 대사에 특별한 영향을 미치지지는 않는 것으로 나타났다. 8주 사육 후 우럭근육 중 n-6지방산의 함량이 높아 사료에 첨가된 지질의 영향을 받은 것으로 나타났다. 그리고 n-3/n-6 PUFA 비가 자연산 우럭의 3.95보다 현저히 낮아 CLA 첨가가 많을수록 성장을 저해하는 것으로 나타나 배합사료 중의 DHA 첨가가 증가되어야 할 것으로 여겨진다. 그러나 이를 섭취한 우럭 근육 중 총 CLA 함량은 급이 량에 따라 각각 $6.57\~16.07\%$가 축적되어 CLA는 다른 지질성분과 함께 어체내 대사과정을 거치는 것으로 나타났다. 우럭의 성장도, 사료효율, DHA/EPA 비, n-3/n-6 PUFA 비, 활력테스트, 혈액지수 둥을 비교하였을 때 $1.0\%$ CLA 첨가가 적절한 첨가량인 것으로 생각된다.

The multifunctional compound such as conjugated linoleic acid (CLA) was used to producing of functional larval rockfish. Artemia, livefoods for larval fish, enriched with highly unsaturated fatty acids (HUFA) and CLA ($0.5\%$, $1.0\%$, $2.5\%$ and $5.5\%$ group) was fed to larval rockfish. Artemia, enriched with $2.5\~5.0\%$ of CLA, negatively affects the quality of larval rockfish. But $1.0\%$ CLA fed group shown to good specific growth rate, feed efficiency, n-3/n-6 PUFA ratio, DHA/EPA ratio and hematology results. The CLA deposited in muscle lipids of larval rockfish was reached 6.57 to $19.69\%$.

키워드

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