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

Aquaculture International, 5: 509-516

Abstract:

The effect of different dietary levels of docosahexaenoic acid DHA, 22:6n-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.

(Instituto de Acuicultura de Torre de la Sal (CSIC), 12595 Ribera de Cabanes, (Castellon) Spain)