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.

Key words: land-based high-level circular pond intensive culture, traditional pond farming, Hybrid Snakehead “Male Snakehead No.1”, muscle nutrient composition, amino acid, fatty acid

摘要： 陆基高位圆池养殖模式因具有节地节水、养殖环境可控等优势，近年来在水产集约化养殖中备受关注。为评估该模式对鱼类综合品质的影响，本研究以杂交鳢“雄鳢1号”幼鱼为对象，设置陆基高位圆池精养组与池塘养殖组，开展365 d养殖对比试验，养殖结束后检测生长指标、肌肉常规营养成分、矿物质元素、氨基酸组成及脂肪酸含量。结果显示：精养组与池塘组相比增重率与特定生长率高、饵料系数低，但差异均不显著（P>0.05）；精养组与池塘组相比肌肉粗脂肪含量极显著提高（P<0.01），蛋白质含量差异不显著（P>0.05）；精养组与池塘组相比，钙含量显著提高（P<0.05），而锌、硒、铁、钠含量显著降低（P<0.05）；两组均检测出18种氨基酸，精养组氨基酸总量（TAA）、必需氨基酸总量（EAA）、非必需氨基酸总量（NEAA）和鲜味氨基酸含量（DAA）均显著低于池塘组（P<0.05），但两组EAA/TAA比值均超40%，均属优质蛋白；精养组检出16脂肪酸，饱和脂肪酸（SFA）、单不饱和脂肪酸（MUFA）及多不饱和脂肪酸（PUFA）含量均显著高于池塘组（P<0.05），且独含EPA等6种脂肪酸。研究表明，陆基高位圆池模式可提升肌肉脂肪与功能性脂肪酸含量，但需通过饲料强化优化矿物质与氨基酸平衡，为优化养殖策略及提升水产品营养价值提供了参考依据。

关键词: 陆基高位圆池精养, 传统池塘养殖, 杂交鳢“雄鳢1号”, 肌肉营养成分, 氨基酸, 脂肪酸