黄颡鱼无水保活技术研究

Research of the keep-alive technology without water of yellow catfish

研究了黄颡鱼在生态冰温区的无水保活运输技术、相关的影响因子及鱼体肌肉和血液中生化指标的变化。结果表明:黄颡鱼的生态冰温区为-1～4℃,黄颡鱼暂养2d后,在低温(2℃)纯氧状态下可保活24h,且可在常温水中(20℃)完全复苏;在保活过程中,肌肉中糖原含量、pH下降、乳酸含量上升,血液中肌酐、血糖、乳酸含量显著上升,白蛋白显著下降,尿酸显著上升;保活前后,除肌酐、血糖、乳酸外其他各项指标没有显著变化。

The keep-alive transport technology without water of yellow catfish in the ecological ice-temperature zone,the impact factors,and changes of biochemical indexes in fish muscle and blood were studied.The results showed that ecological ice-temperature zone of yellow catfish was-1 ~ 4℃.After two days temporary culture,the yellow catfish could survive for 24h with pure oxygen at 2℃,and the catfish could successfully revive when put them into water at the ambient temperature.Glycogen content and pH in muscle decreased,whereas lactic acid content increased during keep-alive process.Levels of creatinine,blood glucose,lactic acid in blood were significantly increased,level of albumin was significantly decreased and level of uric acid was significantly increased.No significant alternations were observed in the other biochemistry parameters before and after keep-alive experiment.