对氨基苯甲酸乙酯在罗非鱼幼鱼模拟运输中的麻醉效果

Anesthetic Effect of Benzocaine in Simulated Transport of Juvenile Oreochromis niloticus

为对氨基苯甲酸乙酯在罗非鱼运输中的应用提供理论依据,分别用5mg/L、10mg/L和15mg/L 4个浓度梯度的对氨基苯甲酸乙酯进行罗非鱼幼鱼处理,在密封式塑料袋中模拟罗非鱼幼鱼麻醉运输过程,并测定各时段的平均耗氧率与排氨率,以测试其麻醉运输效果。结果表明:在0～7h内,对氨基苯甲酸乙酯麻醉能显著降低罗非鱼的耗氧率与排氨率,其中15mg/L的对氨基苯甲酸乙酯适宜于吉富品系罗非鱼幼鱼运输。

In order to provide a theoretical basis for applying benzocaine in transporting tilapia, the juvenile tilapia were treated with benzocaine in four gradient concentrations to simulate the transport, and the oxygen consumption rate and ammonia excretion rate of each period were measured to evaluate the effect of anesthesia. The results showed that the oxygen consumption rate and ammonia excretion rate were both significantly decreased in 0-7 hours, and 15 mg/L benzocaine was suitable for juvenile tilapia transport.