关键词: 东方田鼠, 杀鼠灵, 敏感性, 洞庭湖

Abstract: Objective To learn about the sensitivity of the Yangtze vole (Microtus fortis) to warfarin, and control efficiently its damage. Methods The voles were captured on the lake bank or the beach nearby and divided into 5 groups which was provided wafarin baits for 1 d, 2 d, 4 d, 6 d and 8 d respectively. The relation of the feeding period and the mortality was observed and analyzed, and the sexual differentiation was compared. Results There is no significant difference between male and female voles, and the evaluated values of LFP₅₀, LFP₉₈, LFP₉₉ (with 95% confidence interval) were 2.51(2.24-2.81)d, 25.08(21.76-28.91)d and 29.37(25.25-34.17)d respectively. Conclusion It was suggested the vole had resistance to warfarin if they still survived after feeding on 0.002% warfarin for 29 d or 30 d.