天然および養殖ヒメマスの筋肉脂質の比較

概要

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Lipids in the muscle of wild Kokanee salmon Oncorhynchus nerka adonis were analyzed and compared with those of cultured ones.The lipid content of the cultured fish was higher than that of the wild ones. In both wild and cultured fish, the highest content was found in the ventral muscle, followed by the dorsal and tail muscles in that order. Triglycerides were more abundant in the cultured fish than in the wild ones, while phospholipids were vice versa. Triglycerides were richest in the ventral muscle in both wild and cultured fish. On the other hand, phospholipids were richest in the dorsal muscle in the wild fish, but in the tail muscle in the cultured ones.Fatty acid composition of total lipids revealed that the wild fish had 16:1, 18:3n3, 18:4, 20:4n6, and 20:5, while the cultured ones had 16:0, 18:0, 18:1n9, 18:2, 20:1, and 22:6.
日本水産學會の論文