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实验室和现场试验测定了抗凝血灭鼠剂溴地隆对小家鼠的效力。用围栏里饲养的、吃习惯了无毒食物的同窝杀鼠灵抗药性小家鼠做实验室摄食试验,给试鼠吃21天0.005%浓度溴地隆毒饵,总体死亡率55/58(94.8%)。用同样毒饵进行防制农场小家鼠患的现场试验,以处理前后调查饵滴耗量估计效果,6个现场的防制率在60.4%和100%之间,平均92.4%。另一种新发展的抗凝血灭鼠剂鼠得克也做6个同样条件的现场,防制率在70.2%和100%之间,平均96.0%。有5个现场(溴地隆3个、鼠得克2个)没有获得完全控制。捕捉存活的小家鼠进行实验室检查,给每只动物吃现场试验时使用的毒饵,21天摄食期,溴地隆和鼠得克分别获得12/21(57.1%)和(9/11(81.8%)死亡率。看来,该小家鼠群对这两种抗凝血剂可能产生了抗药性。
Laboratory and field tests determined the efficacy of the anticoagulant rodenticide bromidazine on Mus musculus. In the feeding test, mice of the same group and mice that used to be innocuous and non-toxic food were used to do the laboratory feeding test. The rats were challenged with 21% dextromethorphan baits for 0.005% concentration for a total of 55/58 94.8%). The same baits were used to control the farm house mouse suffering from field trials to deal with the estimated effect of the droplet consumption before and after the survey. The control rates at six sites ranged from 60.4% to 100% with an average of 92.4%. Another newly developed anticoagulant rodenticide, murdok, also performed six same site conditions with rates of control between 70.2% and 100% with an average of 96.0%. There were 5 sites (3 bromodextrins and 2 rat decks) that did not receive full control. Animals that survived were tested for laboratory tests and each animal was given a bait for the field trial. Twelve days (12.1%) and 9/11 (57.1% 81.8%) Mortality It appears that this house mouse population may be resistant to these two anticoagulants.