異なる餌料で養成したマダイ体成分の比較 Comparison of Chemical Components in the Muscle of Red Sea Bream Fed Different Diets
Proximate, fatty acid, and free amino acid compositions in the muscle of cultured red sea bream fed moist pellet (MP-fish) were compared with those of the fish fed fresh bait (FB-fish). Lipid accumulation in the abdominal cavity of both fish was also examined.<br>The lipid content in the muscle of MP-fish was almost the same as that of FB-fish. On the other hand, the content of lipid in the abdominal cavity of MP-fish was higher than that in FB-fish. In the fatty acid composition of muscle non-polar lipid, the percentages of C18:1 n-9 and C18:2 n-6 in MP-fish were higher than in FB-fish, while the percentage of C22:6 n-3 was lower in the former than in the latter. Fatty acid composition of muscle non-polar lipid was affected by the bait.<br>Free amino acid composition was also affected by the bait. The content of Anserine in MP-fish was higher than that in FB-fish, while the contents of Lys, His, and Arg were much lower.
日本水産学会誌 64(5), 867-877, 1998-09-15