【摘要】 为了验证新药“克虫王”在水产养殖中对鱼类的毒性,选用“克虫王”两种剂型渔用杀虫剂对大口鲶鱼苗进行了急性毒性试验。试验结果表明:B₂型“克虫王”对全长4.9cm大口鲶鱼苗的24h、48h、72h半致死浓度（TLm）分别为1.20×10^-6、0.88×10^-6、048×10^-6,安全浓度为0.14×10^-6。C型“克虫王”对大日鲶鱼苗的24h、48h、72h半致死浓度（TLm）分别为4.65×10^-6、3.60×10^-6、1.15×10^-6,安全浓度为0.64×10^-6。更多还原

【Abstract】 The TLm values of medicine"Ke Chong Wang"B2 to Silurus meridionalis (Chen) are 1. 20×10-6.0. 88×10-6 and 0. 48×10-6 respectively within 24h,48h and 72h and its safety concentration is 0. 14×10-6.The TLm values of medicine"Ke Chong Wang"C to Silurus meridionalis (Chen )are 4. 65×10-6.3. 60×10-6 and 1. 15×10-6 respectively within 24h,48h and 72h and its safety concentration is 0. 64×10-6.更多还原