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Titolo:
Growth, survival, lipid composition and pigmentation of turbot (Scophthalmus maximus) larvae fed live-prey enriched in Arachidonic and Eicosapentaenoic acids
Autore:
Estevez, A; McEvoy, LA; Bell, JG; Sargent, JR;
Indirizzi:
Ctr Expt Auicultura, La Coruna 15960, Spain Ctr Expt Auicultura La Coruna Spain 15960 ultura, La Coruna 15960, Spain Univ Stirling, Inst Aquaculture, Stirling FK9 4LA, Scotland Univ StirlingStirling Scotland FK9 4LA ture, Stirling FK9 4LA, Scotland
Titolo Testata:
AQUACULTURE
fascicolo: 3-4, volume: 180, anno: 1999,
pagine: 321 - 343
SICI:
0044-8486(19991103)180:3-4<321:GSLCAP>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLOUNDER PARALICHTHYS-OLIVACEUS; BRAIN ASTROGLIAL CELLS; DOCOSAHEXAENOIC ACID; DIFFERENT COMBINATIONS; PRIMARY CULTURE; JUVENILE; ARTEMIA; ALBINISM; METAMORPHOSIS; APPEARANCE;
Keywords:
turbot; essential fatty acids; brain; phospholipids; pigmentation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Estevez, A Kyoto Univ, Grad Sch Agr, Div Appl Biosci, Kyoto 60601, Japan Kyoto Univ Kyoto Japan 60601 Appl Biosci, Kyoto 60601, Japan
Citazione:
A. Estevez et al., "Growth, survival, lipid composition and pigmentation of turbot (Scophthalmus maximus) larvae fed live-prey enriched in Arachidonic and Eicosapentaenoic acids", AQUACULTURE, 180(3-4), 1999, pp. 321-343

Abstract

Turbot larvae were fed live-prey enriched with different levels of arachidonic (ARA) and eicosapentaenoic (EPA) acids to study the effects of these fatty acids on body composition and pigmentation success. Significantly reduced pigmentation was obtained in those fish fed medium and high ARA diets for 43 days. Growth and survival were the same for all groups. The incorporation of ARA and EPA in fish eyes, brains, livers and carcasses reflected the percentage of these fatty acids in the diets. ARA accumulation was similar in all tissues, but brain accumulated EPA was less efficient than the other tissues examined. A highly significant, negative correlation was found between the %ARA in turbot juvenile brain total lipids and pigmentation success. A weaker, positive correlation was found between brain EPA and pigmentation. Increasing dietary ARA affected the fatty acid composition of turbotbrain phosphoglycerides more than increasing dietary EPA, especially in phosphatidylinositol (PI) and phosphatidylethanolamine (PE). A negative relationship was found between percentage normal pigmentation and ARA levels in brain phosphatidylcholine (PC), PE and phosphatidylserine (PS). Elevated levels of ARA in PI also resulted in malpigmented juveniles, but EPA:ARA ratios greater than or equal to 1 in PI were associated with normal pigmentation. We conclude that, given a sufficiency of dietary docosahexaenoic acid (DHA), the optimum dietary level of EPA is not a function of DHA, but of dietary ARA. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 11:45:23