Cultivation of dha-rich prey organisms for aquatic species
OwnerBaldur Hjaltason, Gudmundur G. Haraldsson +1inventors
InventorsBaldur Hjaltason, Gudmundur G. Haraldsson, Olafur Halldorsson
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Abstract
A method is provided for producing prey organisms such as Artermia and rotifers, for feeding aquacultural organisms in particular at the larval stage. The method comprises cultivating the prey organisms during at least part of their life cycle in an aqueous medium comprising at least one lipid component having a DHA content of at least 30 wt %. The enriched prey organisms preferably have a DHA content of at least 12 wt % of their total lipid content. The prey organisms are suitable feed for larvae of fish including halibut, turbot, bass, and flounder, and crustaceans and molluscs.
Claims40
A method of producing prey organisms for use in aquaculture, the method comprising cultivating said organisms during at least part of their life cycle in an aqueous medium comprising a feed composition having a docosahexaenoic acid (DHA) content of at least 30 wt % and a ratio of DHA to eicosapentaenoic acid (EPA) which is at least 3:1, the composition comprising a 2-75 wt % of a marine animal phospholipid-rich component comprising at least 25 wt % phospholipids;
- about 5-about 99 wt % of a further lipid component obtained from fish-based sources;
- and less than 10 wt % of free fatty acids.
Dependencies are inferred from the claim text.