ZHOU Fan, DING Lifa, PENG Jian, CHEN Liupu, XIANG Xingwei, BEI Yijiang, MA Wenjun, DING Xueyan. Comparative analysis of muscle nutrient composition bewteen in-pond raceway and usual-pond system cultured Liza haematocheila[J]. South China Fisheries Science, 2021, 17(3): 70-76. DOI: 10.12131/20200249
Citation: ZHOU Fan, DING Lifa, PENG Jian, CHEN Liupu, XIANG Xingwei, BEI Yijiang, MA Wenjun, DING Xueyan. Comparative analysis of muscle nutrient composition bewteen in-pond raceway and usual-pond system cultured Liza haematocheila[J]. South China Fisheries Science, 2021, 17(3): 70-76. DOI: 10.12131/20200249

Comparative analysis of muscle nutrient composition bewteen in-pond raceway and usual-pond system cultured Liza haematocheila

  • We analyzed the basic nutrinet composition, amino acids and fatty acid contents, texture characteristics and off-flavor compounds of muscle of Liza haematocheila cultured in in-pond raceway system (IPRS) and usual-pond system (UPS). Results show that the crude lipid content in IPRS was significantly lower than that in UPS, but the crude ash content increased significantly (P<0.05). The lysine and valine contents as well as the ratio of essential amino acids/non-essential amino acids were higher in IPRS than those in UPS (P<0.05). The total saturated fatty acid content of fish dorsal muscle in IPRS was significantly lower than that in UPS (P<0.05), but the total content of poly-unsaturated fatty acid content was significantly higher (P<0.05). The texture characteristics were all higher in IPRS than those in UPS (P<0.05). The geosmin concentration in muscle was detected in UPS, but the geosmin and 2-methylisobomeol were not observed in IPRS. The results indicate that in-pond raceway system has positive effects on improving muscle nutritional quality of L. haematocheila.
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