关键词: 褐家鼠, 抗凝血灭鼠剂, 杀鼠灵, 抗药性

Abstract: Objective We tested the resistance of Rattus norvegicus to anticoagulant rodenticide in Changchun to provide evidence for rodent control.Methods Test of toxin in-taking without selectivity in rodents was conducted according to the method recommended by Natim Rodenticide Resistance Monitoring Collaboration Group.Results 29 R.norvegicus caught in nine districts in Changchun were tested.The resistance rate was 3.45%.The average dosage taken were 19.86 mg/kg.The result showed that R.norvegicus developed individual resistance,however,it had not evolved population resistance to anticoagulant rodenticide.Conclusion The anticoagulant rodenticide Ⅰ still can be used,for commensal rodents control in Changchun but should be used scientifically and properly with more tests of sensitivity.