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针对宁夏海原县南华山所属草场甘肃鼢鼠 (地下鼠 )危害严重 ,我们引进青海省兽医生物制药厂提供的C·肉毒杀鼠素冻干剂进行大面积灭鼠的同时 ,设计了 1‰、1.2‰、1.3‰三个浓度梯度的灭除地下鼢鼠效果试验 ,结果灭效分别是46 .875 %、85 .82 5 %、90 .0 5 0 %,通过统计分析 ,1.2‰和 1.3‰浓度灭效均极显著 ,但两者之间差异不显著 (P〉0 .0 5 ) ,考虑其经济和保护鼠类天敌等因素 ,选定 1.2‰的浓度为海原县灭除地下鼢鼠最佳浓度
In view of the grave harm to the zokor (gnats) in the grassland of Nanhua Mountain, Haiyuan County, Ningxia, we introduced C · botox toxene lyophilized agent provided by the veterinary biopharmaceutical factory in Qinghai Province to carry out large-scale rodent control and design 1 ‰ , 1.2 ‰ and 1.3 ‰, respectively. The results showed that the effect of killing underground zoo rats was 46.88%, 85.82 5% and 90.050% (P> 0.05), taking into account its economy and protection of natural enemies of rodents and other factors, the selected concentration of 1.2 ‰ Haiyuan Xian eliminate ground zokor The best concentration