Chines Journal of Vector Biology and Control ›› 2010, Vol. 21 ›› Issue (3): 241-242.

• Investigation • Previous Articles     Next Articles

Laboratory study on the molluscicidal effect of carbamide

ZHENG Shou-Gui1, JIANG Neng-Ming1, ZHENG Hai-Ou1, HUANG Li-Lan1, WANG Cui-Rong1, YE Xiao-Dong1, WANG Song-Bo1, ZHU Ming-Dong2   

  1. 1 Jindong District Center for Disease Control and Prevention, Jinhua 321000, Zhejiang Province, China; 2 Zhejiang Academy of Medical Sciences
  • Received:2010-02-08 Online:2010-06-20 Published:2010-06-20
  • Supported by:

    Supported by the Zhejiang Medical Science Research Foundation (No. 2005B168)

碳酰胺实验室杀螺效果研究

郑寿贵1,蒋能明1,郑海鸥1,黄礼兰1,王翠蓉1,叶晓东1,汪松波1,朱明东2   

  1. 1 金华市金东区疾病预防控制中心(浙江 金华 321000); 2 浙江省医学科学院
  • 作者简介:郑寿贵(1951-),男,主任医师,中心主任,从事疾病预防控制工作。
  • 基金资助:

    浙江省医药卫生科学研究基金(2005B168)

Abstract:

Objective The study was conducted to establish a molluscicide with strong snail?killing effects and low toxicity to aquatic organisms. Methods Immersion tests using 100, 200, 400 and 800 mg/L carbamide and spraying tests using 15, 20, 25 and 30 g/m2 carbamide were conducted under laboratory conditions to measure the molluscicidal effects, respectively, which were then compared to the effect using 2 g/m2 niclosamide. Results The Oncomelania hupensis mortality rates ranged from 3% to 6% after carbamide immersion at the concentration of 100-800 mg/L, suggesting no statistical difference from those in the control group (P>0.05). The 1, 3 and 5 d O. hupensis mortality rates in laboratory spraying tests reached 91%, 90% and 95% in the 30 g/m2 group, while those in the 2 g/m2 niclosamide group were 97%, 96% and 98%, indicating no statistically significant difference (P>0.05). Conclusion Under laboratory conditions, carbamide immersion was ineffective in killing snails, whereas carbamide spraying had the same molluscicidal effects as niclosamide did.

Key words: Carbamide, Oncomelania hupensis, Molluscicidal effect

摘要:

目的 寻找一种杀螺作用强,对水生生物毒性低的杀螺剂。方法 碳酰胺100、200、400、800 mg/L实验室浸泡杀螺试验和碳酰胺15、20、25、30 g/m2实验室喷洒杀螺试验,并与氯硝柳胺2 g/m2做比较。结果 碳酰胺在100~800 mg/L浓度时浸泡杀螺,钉螺死亡率为3%~6%,与对照组之间差异无统计学意义(P>0.05);实验室喷洒碳酰胺1、3、5 d观察钉螺死亡率,30 g/m2组钉螺死亡率分别为91%、90%和95%,氯硝柳胺2 g/m2组钉螺死亡率分别为97%、96%和98%,两者之间差异无统计学意义(P>0.05)。 结论 碳酰胺实验室浸泡杀螺无效;碳酰胺实验室喷洒杀螺具有与氯硝柳胺相同的效果。

关键词: 碳酰胺, 钉螺, 杀螺效果

CLC Number: