Lipids in the nutrition of the blue abalone, a mollusk with cultivation potential
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Abstract
The effect of type and level of lipids in the growth and metabolism of fatty acids in blue abalone was studied. The first part of the study was conducted in a commercial farm, where three dietary treatments (formulated diet, seaweed and both) were evaluated on biological parameters and fatty acid composition in the tissue of juvenile abalone, over a 329-day period. The fatty acid profiles of the abalone suggest their ability to synthesize long chain polyunsaturated fatty acids n-3 and n-6 from short-chained fatty acids. In the second experiment, the effect of lipid source and level, from four different edible oils, on growth and tissue fatty acid composition was evaluated. No significant differences in growth were found among abalone fed the different level or oil types but fatty acid requirements n-3 and n-6 were determined.
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