EFFECT OF DIFFERENT DIETARY LEVELS OF DOCOSAHEXAENOIC ACID (DHA, 22:6 OMEGA-3) ON THE DHA COMPOSITION OF LIPID CLASSES IN SEA BASS LARVAE EYES

J.C. Navarro, L.A. McEvoy, M.V. Bell, F. Amat, F. Hontoria, J.R. Sargent-1997

Aquaculture International, 5(6) : 509-516 (from Current Contents)

Abstract:

The effect of different dietary levels of docosahexaenoic acid (DHA, 22:6 omega-3) on the corresponding composition of lipid classes of the eyes of sea bass, Dicentrarchus labrax, larvae was studied using Artemia nauplii enriched with different products: oil emulsions, liposomes, a dry microalga and baker's yeast. DHA was found to be a major constituent of phosphatidylserine and phosphatidylethanolamine of visual tissues. The different DHA dietary levels were markedly reflected in the fatty acid composition of the lipid classes of eyes, suggesting a dose-dependent relationship between DHA in the food and in visual tissue lipids of sea bass larvae. The possible implications of this dietary effect are discussed.

(Inst Acuicultura Torre Sal, Ribera de Cabanes 12595, Castellon, Spain)

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