Effect of Live Food Enrichment on Survival, Growth, Pigmentation and Starvation Resistance in Larval Brown Sole (Pleuronectes herzensteini)
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概要
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The present study was conducted to evaluate the effect of feeding <I>Artemia</I> nauplii with different lipid compositions on the survival, growth, pigmentation and starvation resistance of brown sole larvae, <I>Pleuronectes herzensteini</I>. The <I>Artemia</I> were experimentally enriched using commercial preparations of docosahexaenoic acid (DHA) and/or eicosapentaenoic acid (EPA) . Feeding with DHA-enriched <I>Artemia</I> improved both starvation resistance and normal pigmentation siginificantly when compared to <I>Artemia</I> enriched with EPA only. Compared to feeding with non-enriched <I>Aytemia</I>, larval survival with DHA-enriched <I>Artemia</I> was significantly higher. A correlation was obtained between the percentage of normally pigmented or pseudoalbinic fish and the DHA/EPA ratio on 41-day post hatching fish. The results suggest that introducing dietary DHA during the larval feeding period improved survival, normal pigmentation and starvation resistance in brown sole.
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