应用伊维菌素驱杀实验动物体内外寄生虫

目的寻找一种安全有效的驱杀实验动物体内外寄生虫的药物。方法将携带鼠癣螨雄性小鼠随机分为3组,雌鼠也随机分为3组;将携带鼠隐匿管状线虫卵雄性小鼠随机分为3组,雌鼠也随机分为3组。通过3周饮用浓度分别为0.1%、0.5%和1.0%的伊维菌素来观察驱杀效果。结果 3个浓度的伊维菌素对实验动物鼠癣螨和鼠隐匿管状线虫均有较好的驱杀效果。结论伊维菌素可作为一种安全有效驱杀实验动物体内外寄生虫的药物使用。     

四种药物直接投入鸡腺胃驱除长鼻分咽线虫的研究

鸡长鼻分咽线虫目前还未见理想的驱虫药物和方法,笔者就线虫有高效的四种药物,用直接投入鸡腺胃方法,驱除鸡长鼻分咽线虫。结果伊维菌素、盐酸左咪唑对该线虫有较理想的驱除效果,分别达到75％～85％,75％～80％。     

Selection of high-level abamectin resistance from field-collected house flies,Musca domestica

Summary Abamectin is a novel, highly promising insecticide with activity against many pests. To determine if resistance to abamectin could occur, we collected house flies from several New York dairies and selected them in the laboratory. Resistance developed repidly and to a high level (36 or>60,000-fold, depending upon test technique and/or adjuvant) that could not be overcome by the synergists piperonyl butoxide orS,S,S-tributylphosphorotrithioate. There was no increase in (cross)resistance to crotoxyphos, dichlorvos, dimethoate, tetrachlorvinphos, permethrin, dieldrin or lindane following abamectin selection. Our results suggest the potential for abamectin resistance is high, at least in house flies, and that the judicious use of abamectin will be needed to prolong its usefulness as an insecticide.