草原大面积施用雷公藤制剂和莪术醇制剂控制达乌尔黄鼠的效果研究

Control effect of Tripterygium wilfordii agents and Curcumenol preparation on Spermophilus dauricus in large area of grassland

目的研究大面积应用雷公藤制剂和莪术醇制剂控制达乌尔黄鼠的使用方法,为草原黄鼠防治工作提供科学依据。方法采用毒饵撒播机方法进行投药,对比观察鼠密度,雄鼠睾丸下降率、雌鼠怀胎率、胎鼠数等指标差异,判断不育剂防治黄鼠的效果。结果毒饵撒播法施用雷公藤制剂控制达乌尔黄鼠密度达到0.14只/hm^2,较对照比较下降0.96只/hm^2。雄鼠睾丸下降率降低46.1%,雌鼠怀胎率下降39.18%;莪术醇制剂雌鼠怀胎下降47.6%。结论雷公藤制剂和莪术醇制剂可用于草原大面积黄鼠不育控制工作。

Objective To study the effect of anti-pregnant with broadcast machine in large area of grassland,and provide scientific evidence for rat control. Methods The baits were distributed with broadcaster machine.Comparison was made between used two anti-pregnant baits area and unused in the densities,the male testicular fall,the rate of female procreation and litter size. Results Two baits both held anti-pregnant effect. In the Tripterygium wilfordii area,the density of Spermophilus dauricus was 0. 14 piece per hm^2,declined 0. 96 piece per hm^2 compared with the unused area. The rate of female procreation declined 46. 1% and 39. 18% in Tripterygium wilfordii application area. In the area of Curcumenol,the female procreation declined by 47. 6%. Conclusion Tripterygium wilfordii agents and Curcumenol preparation can be used in rat control in the large area grassland.