Abstract

Potential feed ingredients with high lipid content were made by enzymatic digestion followed by centrifugation of eye tissue from dusky rockfish (Sebastes ciliatus), coho salmon (Oncorhynchus kisutch), and sockeye salmon (Oncorhynchus nerka), and brain tissue from sockeye salmon. Supernatant fractions contained significant levels of docosahexaenoic acid and eicosapentaenoic acid and were essentially pure triacyglycerides. For the digest of sockeye salmon brain tissue, the lipids were mainly composed of phospholipids (74%) and sterols (22%). Assays for amino acid profiles and mineral content of the precipitant layers were also performed.

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