关键词: 胆钙化醇灭鼠剂, 蜡丸, 灭鼠效果

Abstract: Objective To study field control effect of a new environmental-friendly rodenticide cholecalciferol. Methods Two residential areas were chosen where the environmental condition, the size of area and the rat density were similar in Changning district from January to February in 2017. Cholecalciferol wax pills were used in the treated area and brodifacoum wax pills in the untreated control area for observing the long term effect and feeding situation. Results The decline rates of rat density in the treated area and the control area were 87.02% and 82.81%, respectively. There was no significant difference between two rodenticides(χ²=0.293, P=0.589); the feeding rates of 2 baits were 3.51% and 5.43%. The feeding rate of cholecalciferol was lower than that of brodifacoum, and there were significant differences(χ²=4.205, P=0.040). Conclusion The cholecalciferol rodenticide can effectively reduce the rodent density. With the incoming anticoagulant rodenticide restriction, we suggest gradual introduction and promotion of cholecalciferol and other environmental rodenticides in rodent control in our country, especially development of dosage, application frequency, and control techniques to provide more support for the rodent management.

Key words: Cholecalciferol rodenticide, Wax pill, Control effect