Bio-encapsulation of artemia for nutrional quality enhancement- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish

Madhu, K (2009) Bio-encapsulation of artemia for nutrional quality enhancement- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish. [Teaching Resource]

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Abstract

The Artemia are most nutritious soon after they hatched . It is important to feed Artemia nauplii to fish larvae as soon as possible after hatching to take full advantage of the yolk and stored reserves found in freshly hatched Instar I nauplii. If there is a delay in feeding of Artemia, they may also use it too fast and too large for the fish larvae to catch and eat. Also, freshly hatched nauplii are dark orange and much easier to see than older nauplii, which are transparent. However, the lipid level and fatty acid composition of newly hatched Artemia nauplii can be highly variable, depending upon the strain and year class. Many researchers have studied the levels of highly unsaturated fatty acids (HUFA) in Artemia. Most of these studies indicate that the performance of larval fish is directly related to the level of HUFA in Artemia being fed and that essential fatty acids are the principal food value of Artemia. When Artemia contain low levels of HUFA, the survival of larval fish declines.

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