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比较了几种抗凝血灭鼠剂对家栖鼠的毒效。以常规浓度(溴敌隆0.005%,杀鼠迷、杀鼠灵和敌鼠钠0.025%)的毒饵,对靶标鼠进行单笼饲养无选择和有选择以及围栏群养有选择摄食试验,用毒杀率和摄食系数评价毒效和适口性。结果表明:⑴实验鼠单笼饲养试验:溴敌隆和杀鼠迷对大白鼠适口性好,毒杀率高,敌鼠钠适口性差;对小白鼠的毒效和适口性,溴敌隆最好,敌鼠钠最差;⑵三省四地区的褐家鼠单笼饲养无选择试验,溴敌隆、杀  相似文献
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Abstract

Ship rats exhibit large increases in abundance (irruptions) following heavy beech seedfall in New Zealand's Nothofagus forests. Predation by rats at high density severely damages native fauna populations. In 2006 the Department of Conservation undertook a management experiment in the Eg‐linton Valley to see if they could protect endangered species during a rat irruption. Poison (0.15% 1080, followed by 0.0375% coumatetralyl, or Racumin®) was laid in bait stations, and the consequences for rat abundance and survival were estimated. All 10 radio‐tagged rats died, suggesting that 1080 had a high impact on the rat population. The two rats that made the smallest daily movements survived longer than the others. Live trapping documented a reduced abundance of rats within the poison area (450 ha) after 1 month of poisoning. However, after 4 months of poisoning, the abundance of rats had begun to recover. Further investigation is needed on acceptance of Racumin® to rats, optimum spacing of bait stations for rats, and bait competition between rats and mice when densities of both species are high.  相似文献
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