Collected reprints: Abstract 2556
Collected reprints
Abstract
Coutteau, P.; Caers, M.; Mallet, A.; Moore, W.; Manzi, J.J.; Sorgeloos, P. (1994). Effect of lipid supplementation on growth, survival and fatty acid composition of bivalve larvae. Measures for succes 1994: 213-218
Lipids, particularly triglycerides, play an important role in early life stages of bivalves as a source of energy and essential fatty acids. Ingestion and incorporation of the fatty acids supplied through lipid emulsions were verified analytically for larval oysters Ostrea edulis. Changes of the fatty acid composition, in particular of (n-3) highly unsaturated fatty acids (n-3 HUFA), were demonstrated in total lipids, polar lipids and triglycerides of oyster larvae fed the lipid emulsions as a supplement to Isochrysis galbana (clone T-Iso), and were dependent on the level and proportion of (n-3) HUFA present in the emulsion. Preliminary culture trials with Mercenaria mercenaria showed better growth and survival throughout metamorphosis for larvae receiving a 50% (of algal dry weight) DHA-rich supplement compared to the controls fed solely on Isochrysis galbana (Clone T-Iso). Supplementation of lipid emulsions that are rich in essential fatty acids may improve or standardize dietary supply of lipids and fatty acids in hatchery production of bivalve larvae.
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