Comparative analysis of growth and muscle nutritional components of Hybrid snakehead "Male Snakehead No.1" under different breeding modes#br#

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  • (1 Tianjin Fisheries Research Institute, Tianjin 300221, China;
    2 Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, Guangdong, China;
    3 Tianjin Monitoring Center for Agro-ecological Environment and Testing Center for Agricultural Product Quality, Tianjin 300221, China)

Online published: 2025-07-08

Abstract

The land-based elevated round pond culture model has garnered significant attention in intensive aquaculture in recent years due to its advantages of land and water conservation and controllable farming environments. To evaluate its impact on the comprehensive quality of fish, this study focused on juvenile hybrid snakehead "Male Snakehead No.1", conducting a 365 day comparative farming experiment between an intensive land based elevated round pond group and a traditional pond culture group. post experiment analyses included growth indicators, muscle conventional nutrients, mineral elements, amino acid composition, and fatty acid content. Results revealed that in terms of growth,the intensive group exhibited higher weight gain rate, specific growth rate, and lower feed conversion ratio compared to the pond group, though differences were not statistically significant (P> 0.05). The intensive group showed a significantly higher crude fat content (P<0.01) and no difference in protein content (P>0.05). The intensive group had significantly higher calcium levels (P<0.05) but significantly lower zinc, selenium, iron, and sodium levels (P<0.05). Amino acid analysis identified 18 amino acids in both groups: the intensive group showed significantly lower total amino acids (TAA), essential amino acids (EAA), non-essential amino acids (NEAA), and umami-associated amino acids (DAA) (P<0.05). However, both groups had EAA/TAA ratios exceeding 40%, indicating high-quality protein. The intensive group detected 16 fatty acids, with significantly higher saturated (SFA), monounsaturated (MUFA), and polyunsaturated (PUFA) fatty acids (P<0.05) than the pond group, including unique components like EPA. The study concludes that land-based elevated round pond culture enhances muscle fat and functional fatty acid content but requires feed fortification to optimize mineral and amino acid balance. These findings provide insights for refining aquaculture strategies and improving aquatic product nutritional value.

Cite this article

YU Hong, SONG Limin, ZHAO Jian, et al . Comparative analysis of growth and muscle nutritional components of Hybrid snakehead "Male Snakehead No.1" under different breeding modes#br#

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[J]. Fishery Modernization, 2025 , 52(3) : 99 -107 . DOI: 10.26958/j.cnki.1007-9580.2025.03.011

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