Polare lipider i fôr til arktisk laks

Offentlig prosjektsammendrag

Over the past 30 years, plant ingredients in salmonid feeds have steadily increased, replacing both fish meal and fish oil. This shift has coincided with a rise in lipid malabsorption syndrome (LMS), low pigmentation, and melanin spots in salmon flesh. Research at the Arctic Salmon Research Centre (ASRC) indicates that LMS is prevalent among salmon farmed in Finnmark. This syndrome impairs lipid transport, affecting the absorption of lipid-soluble components, potentially leading to low pigmentation and melanin spots. The hypothesis is that including polar lipids from krill in feed for salmon in farmed in Finnmark can improve lipid absorption gut health, but also potentially have additional positive effects on fillet quality and growth performance. The project will document effect of polar lipids (ie phospholipids) from krill and choline on LMS, gut and skin health, fillet quality in Atlantic salmon farmed under arctic conditions in Finnmark from sea transfer to harvest.