명태(Theragra chalcogramma) 자어의 지방산 조성에 따른 영양강화로티퍼의 먹이효율
Enriched Rotifer Feeding Efficiency in the Walleye Pollock Theragra chalcogramma Depends on Larval Fatty Acid Composition
2
조회
0
다운로드
5
인용
0
참고문헌
키워드
초록
The objectives of this study were to confirm the nutritional requirements and improve the survival of the walleye pollock Theragra chalcogramma, a cold seawater fish, by enrichment. We analyzed the fatty acids and amino acids of fertilized pollock eggs before hatching, just-hatched larvae, larvae that had absorbed only the yolk sac, and larvae starved for 2 days after yolk absorption. For the survival improvement experiment, we administered docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and DHA-EPA enrichment. Fatty acid decreased DHA and EPA content. On the 30th day, body growth was significantly greater in pollock given the EPA and DHA-EPA treatments (P<0.05). Larval survival at 20 and 30 days after hatching (DAH) was greatest under the DHA-EPA treatment (P<0.05). Survival was significantly lower under the EPA treatment at 10 DAH, but then increased to approach that seen under the EPA-DHA treatment (P<0.05). Therefore, we determined that reduced survival in hatchlings of high-mortality pollack could be improved by controlling EPA and DHA content during enrichment. We conclude that cold seawater fish must be given feed that meets their nutritional needs, which can be accomplished using newly manufactured enrichment products for the larvae of cold seawater fish, such as pollock.
Abstract
The objectives of this study were to confirm the nutritional requirements and improve the survival of the walleye pollock Theragra chalcogramma, a cold seawater fish, by enrichment. We analyzed the fatty acids and amino acids of fertilized pollock eggs before hatching, just-hatched larvae, larvae that had absorbed only the yolk sac, and larvae starved for 2 days after yolk absorption. For the survival improvement experiment, we administered docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and DHA-EPA enrichment. Fatty acid decreased DHA and EPA content. On the 30th day, body growth was significantly greater in pollock given the EPA and DHA-EPA treatments (P<0.05). Larval survival at 20 and 30 days after hatching (DAH) was greatest under the DHA-EPA treatment (P<0.05). Survival was significantly lower under the EPA treatment at 10 DAH, but then increased to approach that seen under the EPA-DHA treatment (P<0.05). Therefore, we determined that reduced survival in hatchlings of high-mortality pollack could be improved by controlling EPA and DHA content during enrichment. We conclude that cold seawater fish must be given feed that meets their nutritional needs, which can be accomplished using newly manufactured enrichment products for the larvae of cold seawater fish, such as pollock.
참고문헌 (28)
- Nabil Abdul Malak, "Environmental temperature and metabolism of the molecular species of phosphatidylcholine in the tissues of the rainbow trout", Lipids, 24(4), pp.318~324 (1989), Wiley[DOI]
- Cláudia Aragão, "Amino acid pools of rotifers and Artemia under different conditions: nutritional implications for fish larvae", Aquaculture, 234(1-4), pp.429~445 (2004), Elsevier BV[DOI]
- A Awaïss, "Fatty acid profiles of two freshwater fish larvae (gudgeon and perch) reared with Brachionus calyciflorus Pallas (rotifer) and", or dry diet, 1996, pp.27(9), 651~658[DOI]
- Bacheler NM, "Spatial and temporal patterns of walleye pollock (Theragra chalcogramma) spawning in the eastern Berring Sea inferred from egg and larval distributions", Fish Oceanogr, 19, pp.107~120 (2010)[DOI]
- M. V. Bell, "Deficit of didocosahexaenoyl phospholipid in the eyes of larval sea bass fed an essential fatty acid deficient diet", Journal of Fish Biology, 49(5), pp.941~952 (1996), Wiley[DOI]
- J.G. Bell, "Optimising lipid nutrition in first-feeding flatfish larvae", Aquaculture, 227(1-4), pp.211~220 (2003), Elsevier BV[DOI]
- Bruce MP, "Broodstock management and nutrition and egg and larval quality in the Atlantic halibut (Hippoglossus hippoglossus)and European sea bass (Dicentrarchus labrax)", PhD, pp.1999
- Cindy Campoverde, "The effect of live food enrichment with docosahexaenoic acid (22:6n-3) rich emulsions on growth, survival and fatty acid composition of meagre ( Argyrosomus regius ) larvae", Aquaculture, 478, pp.16~24 (2017), Elsevier BV[DOI]
- A Estévez, "Growth, survival, lipid composition and pigmentation of turbot (Scophthalmus maximus) larvae fed live-prey enriched in Arachidonic and Eicosapentaenoic acids", Aquaculture, 180(3-4), pp.321~343 (1999), Elsevier BV[DOI]
- 강수경, "1970-1990년대 동해에서 어획된 명태(Theragra chalcogramma)의 체장에 따른 체급별 어획 마릿수 추정", 한국수산과학회지, 46(4), pp.445~453 (2013), 한국수산과학회
- Klungsøyr J, "Fatty acid composition as an indicator of food intake in cod larvae Gadus morhua from Lofoten, Northern Norway", Mar Biol, 102, pp.183~188 (1989)
- Hans Adolf Krebs, "Metabolism of ketonic acids in animal tissues", Biochemical Journal, 31(4), pp.645~660 (1937), Portland Press Ltd.[DOI]
- 권오남, "영양강화 Rotifer와 효소활성 향상 Rotifer의 먹이효율 비교", 한국양식학회지, 22(1), pp.105~111 (2009), 한국양식학회
- Kwon ON, "Effects of enhanced digestive enzymes activity with starch and glycogen during rotifer Brachionus rotundiformis culture", J Aqua Feed Sci Nut, 4, pp.27~33 (2012)[DOI]
- Lee JU, "Estimation on optimum fishing effort of walleye pollock fishery in the east coast of Korea: Based on the economic analysis between danish seine fishery and trawl fishery for walleye pollock", J Fish Bus Adm, 22, pp.75~99 (1991)
- Lingenfelser JT, "Influence of fish oil in production catfish feeds on selected disease resistance factors", J Appl Aquac, 5, pp.37~48 (2010)[DOI]
- Mourente G, "Effects of weaning onto a pelleted diet on docosahexaenoic acid (22:6 n-3) levels in brain of developing turbot (Scophthalmus maximus L.)", Aquaculture, 105, pp.363~377 (1992)[DOI]
- 박진철, "오징어(Todarodes pacificus) 간유와 광합성세균을 주원료로 한 동물먹이생물 영양강화제의 지질 영양강화 효과", 한국수산과학회지, 44(4), pp.339~344 (2011), 한국수산과학회
- Parma L, "Fatty acid composition of eggs and its relationships to egg and larval viability from domesticated common Sole (Solea solea) breeders", Reprod Domest Anim, pp.186~194 (2015)[DOI]
- Jose R. Rainuzzo, "The significance of lipids at early stages of marine fish: a review", Aquaculture, 155(1-4), pp.103~115 (1997), Elsevier BV[DOI]
- John Sargent, "Recent developments in the essential fatty acid nutrition of fish", Aquaculture, 177(1-4), pp.191~199 (1999), Elsevier BV[DOI]
- John Sargent, "Lipid nutrition of marine fish during early development: current status and future directions", Aquaculture, 179(1-4), pp.217~229 (1999), Elsevier BV[DOI]
- Stoiber W, "Cellularity changes in developing red and white fish muscle at different temperatures: simulating natural environmental conditions for a temperate freshwater cyprinid", J Exp Biol, 205, pp.2349~2364 (2002)
- Tacheuchi T, "Essential fatty acid requirements of aquatic animals with emphasis on fish larvae and fingerlings", Rev Fish Sci, 5, pp.1~25 (1997)[DOI]
- Douglas R. Tocher, "Fatty acid requirements in ontogeny of marine and freshwater fish", Aquaculture Research, 41(5), pp.717~732 (2010), Wiley[DOI]
- Tocher DR, "Fatty acid metabolism in marine fish: low activity of D5 desaturation in gilthead sea bream (Sparus aurata) cells", Lipids, 34, pp.433~440 (1999)
- I.O. Walker, "Electrometric and spectrophotometric titration of histone and deoxyribonucleohistone", Journal of Molecular Biology, 14(2), pp.381~398 (1965), Elsevier BV[DOI]
- Watanabe T, "Importance of docosahexaenoic acid in marine larval fish", J World Aquacult Soc, 24, pp.152~161 (1993)[DOI]