周凡, 丁理法, 彭建, 陈刘浦, 相兴伟, 贝亦江, 马文君, 丁雪燕. 池塘内循环“跑道”与传统土池模式养成梭鱼的营养成分对比研究[J]. 南方水产科学, 2021, 17(3): 70-76. DOI: 10.12131/20200249
引用本文: 周凡, 丁理法, 彭建, 陈刘浦, 相兴伟, 贝亦江, 马文君, 丁雪燕. 池塘内循环“跑道”与传统土池模式养成梭鱼的营养成分对比研究[J]. 南方水产科学, 2021, 17(3): 70-76. DOI: 10.12131/20200249
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

池塘内循环“跑道”与传统土池模式养成梭鱼的营养成分对比研究

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

  • 摘要: 以池塘内循环“跑道”与传统土池模式养成的梭鱼 (Liza haematocheila) 为研究对象,分析2种不同模式对梭鱼肌肉基本营养组成、氨基酸和脂肪酸组成、质构参数以及土腥味物质含量等指标的影响。结果表明,相比于土池组,“跑道”组梭鱼背肌粗脂肪含量显著下降,粗灰分含量显著增加 (P<0.05);“跑道”组鱼肉中赖氨酸和缬氨酸含量以及必需氨基酸总量/非必需氨基酸总量显著高于土池组 (P<0.05);“跑道”组鱼肉饱和脂肪酸总量显著低于土池组 (P<0.05),但多不饱和脂肪酸总量显著增加 (P<0.05);硬度等7项质构参数指标均以“跑道”组高于土池组 (P<0.05)。土池组的梭鱼肌肉中检测有土臭素存在,而“跑道”组中未检测到土臭素和2-甲基异莰醇。研究表明“跑道”模式能够一定程度提升梭鱼的营养品质。

     

    Abstract: 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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