有机磷农药乐果对鱼类的毒性影响  

Toxicity Effeet of Leguo on Fish

作　　者：任绍洁[1] 刘洋 杨景峰[1] 胡宗福[1] 董福臣 

机构地区：[1]内蒙古民族大学动物科技学院,内蒙古通辽028042 [2]通辽市科尔沁区动物检疫站,内蒙古通辽028000 [3]通辽市科尔沁区畜牧工作站,内蒙古通辽028000

出　　处：《内蒙古民族大学学报（自然科学版）》2006年第6期659-661,共3页Journal of Inner Mongolia Minzu University：Natural Sciences

摘　　要：以普通泥鳅为实验对象,研究了有机磷农药乐果在低、中、高浓度时对其生长发育的影响以及内脏组织器官产生的病理变化.将泥鳅分别置于浓度为0,40,60,80,100,120,140 mg/L的乐果溶液中,观察其在24h,48 h,96 h的个体死亡情况和病理学变化.测出乐果对泥鳅的24 h,48 h,96 h半数致死浓度分别为94.26,75.68,58.34 mg/L.通过以上结果说明,农药乐果对水生生物中的泥鳅有极为敏感的毒性作用,进而说明其对自然环境评价与保护具有积极作用.Take the ordinary loach as the experimental object, has studied the organic phosphorus agricultural chemicals leguo when is low, center, the high potency to its growth growth influence as well as may cause the fish body internal organs organization organ to have the pathological change. Respectively sets at the loach to the density is 0, 40, 60, 80, 100, 120, 140mg/L leguo in the solution, observes it in 24h, 48h, the 96h individual death situation and the histology change. Determines leguo to loach＇s 24h, 48h, the 96h half number of lethal concentrations respectively is 94.26, 75.68, 58.34mg/L. Carries on the comparison through the experimental fish, explained the agricultural chemicals leguo add water the propagating toxicity influence, then expounds it to humanity＇s natural environment protection positive role.

关 键 词：乐果 泥鳅 半致死量 

分 类 号：S941.91[农业科学—水产养殖]