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Intégration d'ingrédients marins hautement digestible à haute valeur nutritionnel dans le régime alimentaire du loups tachetés (Anarhichas minor) afin de soutenir l'essor d'une nouvelle industrie piscicole Québécoise.

The spotted wolffish (SW) has long been acknowledged as an alternative species for industrial mariculture in Québec. The success of developing a new species for aquaculture lies in a robust quantitative and qualitative supply of juveniles. For that purpose, our consortium first needs to address the poor incubation success obtained during preliminary studies, i.e. 0 to 45% of eggs successfully hatching compared to 45 to 99% in Norway. The commercial diet currently used with broodstock is suspected to be inadequate and impede egg quality, incubation success and larval survival. Specifically, raw products currently used in commercial formulation may lack specific nutrients that are normally provided by the prey diversity of this generalist feeder (e.g. sea urchins and crustaceans). A second major limitation is the low growth rate and survival of early stage juveniles. Food assimilation has been pointed out as a limiting factor for larvae, and that can be addressed by developing a specific formulated diet adapted to juveniles. In particular, inclusion of herring milt hydrolyzates and monoacylglycerols is likely to facilitate absorption of proteins, polyamines, nucleotides and lipids during early development. In view of these considerations, the project globally aims to used bring the existing broodstock to three egg productions/year in order to test (in a timely manner) the effects of novel aquafeeds (diets) specifically formulated for improving egg quality and juvenile survival.

Knut Trellevik

President
Amar Seafood

CRIBIQ's contribution

$ 199 410


Partners

Industrial participants :

Amar Seafood Ltd