Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Growth of Larval Sweetfish Plecoglossus altivelis Fed Moina macrocopa

물벼룩 Moina macrocopa 급이가 은어 Plecoglossus altivelis 자어의 성장에 미치는 영향

  • Choi, Byeong-Dae (Division of Marine Life Science/Institute of Marine Industry, Gyeongsang National University) ;
  • Choi, Young-Jun (Division of Marine Life Science/Institute of Marine Industry, Gyeongsang National University) ;
  • Shon, Eui-Jeong (Fisheries Production Division, Namhae County Office) ;
  • Park, Kyung-Dae (Fisheries Resources Research Institute, Gyeongnam Provincial Government) ;
  • Kang, Seok-Joong (Division of Marine Life Science/Institute of Marine Industry, Gyeongsang National University)
  • 최병대 (경상대학교 해양생명과학부/해양산업연구소) ;
  • 최영준 (경상대학교 해양생명과학부/해양산업연구소) ;
  • 손의정 (남해군청) ;
  • 박경대 (경상남도 수산자원연구소) ;
  • 강석중 (경상대학교 해양생명과학부/해양산업연구소)
  • Published : 2007.08.31
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Abstract

The effect of live food and commercial diet on sweetfish Plecoglossus altivelis culture was assessed by determining the daily growth rate and feed conversion ratio. After feeding for 8 weeks, the Moina macrocopa diet resulted in a higher growth rate of 5.101 compared to commercial (3.441) and Artemia (2.729) diets. In addition fish fed the M. macrocopa diet had the weight gain, averaging 41.29 g at the end of the experiment. The content of n-3 highly unsaturated fatty acids (HUFA) was highest in the commercial diet, while free fatty acids were not detected in the M. macrocopa diet. Triglycerides, the energy source in fishes, constituted 40.0% of the M. macrocopa diet, which was significantly higher than in the commercial and Artemia diets at 20.0 and 12.0%, respectively These results indicate that freshwater M. macrocopa can be used as feed for sweetfish larvae, even without docosahexaenoic acid (DHA) enrichment from Artemia.

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References

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