3种抗凝血灭鼠剂实验室及现场灭鼠效果比较

目的比较杀鼠迷、溴鼠灵和敌鼠钠盐3种毒饵实验室及现场灭鼠效果，为今后灭鼠工作提供科学依据。方法用单笼饲养有选择给饵法测定3种毒饵的适口性及实验室毒杀效果，计算摄食系数和实验室校正死亡率；选择定边县一养鸡场、西安市南郊2个疗养院作为灭鼠现场，用粉迹法测定鼠密度，采取一次性投饵，计算3种毒饵的现场校正灭鼠率。结果杀鼠迷、溴鼠灵、敌鼠钠盐毒饵的摄食系数分别为0．61、0．24和0．51，分别达到A级、B级和A级，实验室校正死亡率均为100％，达到A级；现场校正灭鼠率为91．34％、80．94％和88．39％，分别达到A级、B级和B级。结论3种抗凝血灭鼠剂均具有较好的适口性及实验室毒杀效果，但杀鼠迷毒饵灭鼠效果优于其他2种。

Comparison of the control effect of three anticoagulant rodenticides in the laboratory and field

Objective To provide scientific data for deratization by comparing the control effect of coumatetraly,brodifacoum and sodium diphacinone in the laboratory and the field.Methods Selective feeding method in single cage was used to determine the palatability of the poison baits and the control effect in the laboratory.A hennery in dingbian county and two sanitariums in the suburbs of xi'an were selected as test fields and the powder trace method was used to determine the rodent density.Results The feeding indexes to coumatetraly,brodifacoum and sodium diphacinone were 0.61,0.24 and 0.51 respectively,which reached A,B and A grade respectively.The corrected mortality in the laboratory was 100%,reaching A grade.And that in the field were 91.34%,80.94% and 88.39% respectively,which also reached A,B and B grade respectively.Conclusion Three anticoagulants had good palatability and good control effect in the laboratory.Especially,the control effect of coumatetraly was the best among three anticoagulants.