摘要
对采自南京、安徽两地的钉螺经室内饲养１ ～９１ｄ 后在氯硝柳胺１ ～０－０３１ ２５ｍｇ／Ｌ浓度下，室温２５ ℃时浸杀２４ ～４８ｈ 钉螺死亡率呈明显降低趋势，但室内饲养１ ～１１ｄ 的钉螺敏感性明显高于室内饲养１６ ～９１ｄ 的钉螺（ Ｐ＜ ０－０１） ，而１ ～１１ｄ 各组间差别无显著性（ Ｐ＞ ０－０５） 。实验提示，室内饲养超过１０ｄ 以上的钉螺对氯硝柳胺的敏感性下降，我们认为室内药物筛选用钉螺一般不宜采用室内饲养超过１０ｄ 以上的钉螺，对其它杀螺剂是否存在类似现象有待进一步观察。
Sensitivityto niclosamide ofsnail, Oncomelania hupensis,collected from thefield of Nanjing and Anhuiafter being bred inlaboratoryfor1 ～91 days were detected . Whenthesnails wereim mersedin niclosamide(withconcen tration of1 ～0-031 25 mg/L) under25 ℃for 24 or 48 hours,the snail mortality declined as times wenton . The resultsshowed thatthe sensitivity to niclosamide ofsnail bred for 1 ～11 daysin laboratory was much higher than those bred for 16 ～91 days( P< 0 .01) butthere were nosignificantdifferencesin sensitivity amongsnailsbred 1～ 11 daysinlaboratory .The authorssuggested thatsnails bred in laboratory over 10 days was no good forscreeningnew molluscicide.
出处
《实用寄生虫病杂志》
1999年第4期162-164,共3页
Journal of Practical Parasitic Diseases
关键词
钉螺
敏感性
氯硝柳胺
Snail,sensitivity ,niclosamide
