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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Effects of dietary docosahexaenoic acid (DHA; 22:6n-3) on lipid and fatty acid compositions and growth in gilthead sea bream (Sparus aurata L.) larvae during first feeding
Author(s): Mourente, Gabriel
Rodriguez, Antonio
Tocher, Douglas R
Sargent, John R
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Issue Date: 15-Apr-1993
Date Deposited: 22-Aug-2012
Citation: Mourente G, Rodriguez A, Tocher DR & Sargent JR (1993) Effects of dietary docosahexaenoic acid (DHA; 22:6n-3) on lipid and fatty acid compositions and growth in gilthead sea bream (Sparus aurata L.) larvae during first feeding. Aquaculture, 112 (1), pp. 79-98.
Abstract: The effects of dietary DHA levels on lipid class compositions, total lipid and phosphoglyceride fatty acid compositions and growth were investigated in gilthead sea bream, Sparus aurata, larvae during the first 2 weeks after hatching. Different dietary levels of DHA were supplied to the larvae in the rotifer, Brachionus plicatilis, previously enriched with (a) Nannochloropsis gaditana, (b) a mixture of N. gaditana, Isochrysis galbana and Rhodomonas sp. or, (c) Protein Selco (Artemia Systems). The results showed that growth performance of gilthead sea bream larvae at first feeding was influenced by both total n-3HUFA and DHA contents of the diet, the best growth rate being achieved with a high n-3HUFA content and a high DHA:EPA ratio. Lipid contents, nutritional status, and total lipid and phophoglyceride DHA levels of the larvae were directly correlated with dietary DHA levels. The fatty acid compositional data suggested that dietary EPA could not contribute significantly to tissue DHA levels in larval gilthead sea bream, presumably due to low Δ4 desaturase activity.
DOI Link: 10.1016/0044-8486(93)90160-Z
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