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为探索丁香酚对真鲷(Pagrosomus major)(♀)×黑鲷(Acanthopagrus schlegelii)(■)杂交子一代的麻醉效果,作者研究了麻醉剂浓度、温度、鱼体规格对鱼体麻醉和复苏的影响,不同麻醉浓度下鱼体呼吸频率的变化,以及麻醉时间和空气中暴露时间对鱼体复苏的影响。结果表明,丁香酚质量浓度为30 mg/L时,对杂交鱼具最佳麻醉效果;温度对丁香酚麻醉效力具有促进作用;麻醉和复苏时间受鱼体规格的影响较小,小规格杂交鱼对丁香酚耐受性稍强;丁香酚质量浓度≤20 mg/L对呼吸频率没有明显影响,质量浓度≥30 mg/L,呼吸频率迅速下降;鱼体在30 mg/L的丁香酚溶液中麻醉时间不宜超过14 min;深度麻醉状态下,空气中暴露9 min以内不会引起鱼死亡。研究将为杂交鱼活体操作和转移运输提供参考。
To explore the anesthetic effects of eugenol on Pagrosomus major (♀) × Acanthopagrus schlegelii (â ...) hybrid generation, the authors studied the effects of anesthetic concentration, temperature, and fish size on fish anesthesia and resuscitation , The respiratory rate of fish under different anesthetic concentrations, and the effects of anesthesia time and air exposure time on the recovery of fish. The results showed that when the concentration of eugenol was 30 mg / L, the best anesthetic effect on hybrid fish was obtained. Temperature had a positive effect on the anesthetic efficacy of eugenol. The time of anesthesia and resuscitation was less affected by the size of the fish. The eugenol resistance was slightly stronger. The concentration of eugenol ≤20 mg / L had no significant effect on the respiratory rate, and the respiratory rate decreased rapidly when the concentration of eugenol was ≥30 mg / L. The body was anesthetized in 30 mg / L eugenol solution Time should not exceed 14 min; deep anesthesia, the air exposure within 9 min will not cause fish to die. The research will provide reference for the live operation and transfer of hybrid fish.