| 英文摘要 |
The composition and contents of free amino acids (FAA) showed no marked difference between particle-floating (PF) and powder-mixture (PM) feeds. They were rich in taruine and histidine indicating the major protein source of feeds was brown fish meal. Biogenic amines including putricine, cadaverine and histamine were present in considerable amounts in diets. The C16:0 and C18:1 were the predominant fatty acids in both diets. PF diet had more monounsaturated fatty acids than PM diet, but had lower polyunsaturated and n-3 polyunsaturated fatty acids. The condition factor, body mass index, and hepatosomatic index of PM raised eels were higher than those of PF eels. These differences became less with growing time of eels. PM eels had higher moisture content with lower lipid content. The composition and contents of FAA showed no marked difference between both eels, and the dominant FAA was taruine. Eels were rich in carnosine, but anserine was not detected. The composition and contents of ATP-related compounds showed no marked difference between both eels. IMP, inosine and hypoxanthine were the major compounds, and they showed no significant changes with growing time. PM eels had a higher L value and lower a and b values. Sensory evaluation showed PM eels had higher scores of acceptability than PF eels. |
