安徽农业科学
安徽農業科學
안휘농업과학
JOURNAL OF ANHUI AGRICULTURAL SCIENCES
2010年
8期
4046,4048
,共2页
空心莲子草%斑马鱼%急性鱼毒
空心蓮子草%斑馬魚%急性魚毒
공심련자초%반마어%급성어독
Alternanthera philoxeroides%Brachydanio rerio%Acute toxicity
[目的]评价空心莲子草对鱼类水生生物的急性毒性作用,为灭螺药物成分的提取提供指导.[方法]在室内常温条件下,采用静水法测试空心莲子草水浸液对斑马鱼的急性毒性作用.以寇氏法计算半数致死浓度(LC_(50))及95%可信限.[结果]空心莲子草水浸液对斑马鱼24、48 h LC_(50)分别为587、497 mg/L,其安全浓度为107 mg/L,斑马鱼死亡率随药物浓度增加和时间的延长而上升.[结论]空心莲子草水浸液对斑马鱼为中等毒性,其安全浓度低于杀螺浓度.
[目的]評價空心蓮子草對魚類水生生物的急性毒性作用,為滅螺藥物成分的提取提供指導.[方法]在室內常溫條件下,採用靜水法測試空心蓮子草水浸液對斑馬魚的急性毒性作用.以寇氏法計算半數緻死濃度(LC_(50))及95%可信限.[結果]空心蓮子草水浸液對斑馬魚24、48 h LC_(50)分彆為587、497 mg/L,其安全濃度為107 mg/L,斑馬魚死亡率隨藥物濃度增加和時間的延長而上升.[結論]空心蓮子草水浸液對斑馬魚為中等毒性,其安全濃度低于殺螺濃度.
[목적]평개공심련자초대어류수생생물적급성독성작용,위멸라약물성분적제취제공지도.[방법]재실내상온조건하,채용정수법측시공심련자초수침액대반마어적급성독성작용.이구씨법계산반수치사농도(LC_(50))급95%가신한.[결과]공심련자초수침액대반마어24、48 h LC_(50)분별위587、497 mg/L,기안전농도위107 mg/L,반마어사망솔수약물농도증가화시간적연장이상승.[결론]공심련자초수침액대반마어위중등독성,기안전농도저우살라농도.
[Objective]The purpose of this study is to estimate the acute toxicity of extract from Alternanthera philoxeroides to fish (Brachydanio rerio) in order to guide the extraction of molluscacide from A.philoxeroides.[Methods]The acute toxicities of the extract of A.philoxeroides on B.rerio were determined with the static test method at normal temperature.The median lethal concentration(LC_(50)) and 95% confidence limit were calculated by using Karber method.[Result]Determinations showed that the LC_(50) of extracts from A.philoxeroides on B.rerio for 24 h and 48 h were 587 and 497 mg/L, respectively;and its mass concentration of safely was 107 mg/L.The mortality rate of fish(B.rerio) increased with the rise of molluscacide concentration and the extension of action time.[Conclusion]The extract of A.philoxeroides showed a middling acute toxicity to B.rerio, and the mass concentration of safely was low than the concentration killing snail.
