现代畜牧兽医
現代畜牧獸醫
현대축목수의
LIAONING JOURNAL OF ANIMAL HUSBANDRY AND VETERINARY MEDICINE
2014年
3期
41-43
,共3页
敌百虫%伊维菌素%近邻剑水蚤%急性毒性%安全浓度
敵百蟲%伊維菌素%近鄰劍水蚤%急性毒性%安全濃度
활백충%이유균소%근린검수조%급성독성%안전농도
Trichlorfon%Ivermectin%Cyclops neighbors%Acute toxicity%Safe concentration
鱼苗孵化用水经常会滋生桡足类，严重影响育苗的成活率。本文通过水生生物急性毒性试验方法，研究敌百虫和伊维菌素对淡水常见桡足类近邻剑水蚤（Cyclops vicinus）的急性毒性。根据预试验的结果，敌百虫浓度梯度设置为0.3、0.6、1.2、2.4、4.8 mg/L，伊维菌素浓度梯度设置为0.01、0.04、0.16、0.64、2.56μg/L。每个浓度组设置3个平行，每个平行放10只桡足类，试验在20℃光照培养箱中进行。结果表明，敌百虫对桡足类的24 h LC50和48 h LC50分别为1.862、1.183 mg/L，而伊维菌素对桡足类的24 h LC50和48 h LC50分别为0.404μg/L、0.1644μg/L。伊维菌素的毒性远远大于敌百虫，生产上选用伊维菌素效果更好。与此同时，敌百虫和伊维菌素对桡足类的安全浓度分别为0.1432 mg/L、0.00816μg/L，可以为生物监测环境农药污染提供重要依据。
魚苗孵化用水經常會滋生橈足類，嚴重影響育苗的成活率。本文通過水生生物急性毒性試驗方法，研究敵百蟲和伊維菌素對淡水常見橈足類近鄰劍水蚤（Cyclops vicinus）的急性毒性。根據預試驗的結果，敵百蟲濃度梯度設置為0.3、0.6、1.2、2.4、4.8 mg/L，伊維菌素濃度梯度設置為0.01、0.04、0.16、0.64、2.56μg/L。每箇濃度組設置3箇平行，每箇平行放10隻橈足類，試驗在20℃光照培養箱中進行。結果錶明，敵百蟲對橈足類的24 h LC50和48 h LC50分彆為1.862、1.183 mg/L，而伊維菌素對橈足類的24 h LC50和48 h LC50分彆為0.404μg/L、0.1644μg/L。伊維菌素的毒性遠遠大于敵百蟲，生產上選用伊維菌素效果更好。與此同時，敵百蟲和伊維菌素對橈足類的安全濃度分彆為0.1432 mg/L、0.00816μg/L，可以為生物鑑測環境農藥汙染提供重要依據。
어묘부화용수경상회자생뇨족류，엄중영향육묘적성활솔。본문통과수생생물급성독성시험방법，연구활백충화이유균소대담수상견뇨족류근린검수조（Cyclops vicinus）적급성독성。근거예시험적결과，활백충농도제도설치위0.3、0.6、1.2、2.4、4.8 mg/L，이유균소농도제도설치위0.01、0.04、0.16、0.64、2.56μg/L。매개농도조설치3개평행，매개평행방10지뇨족류，시험재20℃광조배양상중진행。결과표명，활백충대뇨족류적24 h LC50화48 h LC50분별위1.862、1.183 mg/L，이이유균소대뇨족류적24 h LC50화48 h LC50분별위0.404μg/L、0.1644μg/L。이유균소적독성원원대우활백충，생산상선용이유균소효과경호。여차동시，활백충화이유균소대뇨족류적안전농도분별위0.1432 mg/L、0.00816μg/L，가이위생물감측배경농약오염제공중요의거。
The survival rate of fish larvae was heavily influenced by the copepoda in hatching water. The acute toxicity of dipterex and ivermectin on Cyclops vicinus which is one of the most common copepoda species in fresh water were studied at the temperature of 20 ℃ in illumination in-cubator. According to the trial test the concentration gradient of dipterex and ivermectin were built by 0.3,0.6,1.2、,2.4,4.8 mg/L and 0.01,0.04,0.16,0.64,2.56 ug/L. 3 repetitions were set in each concentration group and 10 Cyclops vicinus were arranged in each repetition. The results showed that the LC50 for 24 h and 48 h of dipterex were 1.862 mg/L and 1.183 mg/L. The LC50 for 24 h and 48 h of ivermectin were 0.404 μg/L and 0.164 4 μg/L. The toxicity of ivermectin was much more greater than that of dipterex to Cyclops vicinus. The safety concentration of dipterex and ivermectin were 0.143 2 mg/L and 0.008 16 μg/L which provide important data for the biological monitoring in the environmental pollution by pesticide.
