Cultivation of dha-rich prey organisms for aquatic species

Details Cultivation of dha-rich prey organisms for aquatic species Cultivation of dha-rich prey organisms for aquatic species

A - Human Necessities

23

K

A23K 1/18 (2006.01) A01K 61/00 (2006.01) A01K 61/02 (2006.01) A23K 1/16 (2006.01)

Patent

CA 2397352

A method is provided for producing prey organisms such as Artemia 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.

L'invention concerne un procédé de production d'organismes prédateurs, tels que l'Artémia et les rotifères. Ces organismes sont produits dans le but de nourrir des organismes aquacoles, surtout lorsqu'il sont à l'état larvaire. Ce procédé consiste à cultiver les organismes prédateurs pendant au moins une partie de leur cycle de vie dans un milieu aqueux comprenant au moins un composant lipidique dont le contenu de DHA est au moins égal à 30 % en poids. Les organismes prédateurs enrichis possèdent, de préférence, un contenu d'au moins 12 % en poids de leur contenu lipidique total. Ces organismes conviennent pour l'alimentation de larves de poisson, notamment, le flétan, le turbot, l'achigan et la sole ainsi que les crustacés et les mollusques.

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