Errouissi F, Lumaret J-P
Unité de Recherche Biodiversité et Biologie des Populations, Institut Supérieur des Sciences Biologiques Appliquées de Tunis (ISSBAT), Tunis, Tunisia.
Med Vet Entomol. 2010 Dec;24(4):433-40. doi: 10.1111/j.1365-2915.2010.00891.x.
A 2-year study was performed in two sites in southern France to assess the effect of ivermectin residues on the attractiveness of cattle dung to colonizing insects. Insect captures were compared between pitfall traps baited with dung from untreated cattle and dung from cattle that had been treated with a slow-release (SR) bolus of ivermectin. Cattle dung was collected at different times after treatment (4, 14, 42, 70 and 98 days). Excretion showed a plateau, with levels ranging between 0.688 µg and 1.123 µg ivermectin per gram of wet dung. Faecal residues affected insect captures at both sites. Effects were independent of the time dung was collected after treatment, except for one result subsequent to a severe drought during the baiting period. Ivermectin-contaminated dung showed a significant attractive effect, with increased captures regardless of the guild to which beetles belonged. This study demonstrates the attractiveness of ivermectin residues over a long period after the treatment of animals. It draws attention to the danger of widespread use of this endectocide-based SR bolus, which is attributable to the preferential attraction of insects to treated dung, which potentially puts at risk the survival of their offspring.
在法国南部的两个地点进行了一项为期两年的研究，以评估伊维菌素残留对牛粪吸引定居昆虫的影响。比较了用未处理牛的粪便和用伊维菌素缓释丸剂处理过的牛的粪便作为诱饵的陷阱诱捕到的昆虫数量。在处理后的不同时间（4、14、42、70和98天）收集牛粪。排泄量呈现平稳状态，每克湿粪中伊维菌素的含量在0.688微克至1.123微克之间。粪便残留对两个地点的昆虫捕获量都有影响。除了在诱饵期遭遇严重干旱后的一个结果外，影响与处理后收集粪便的时间无关。受伊维菌素污染的粪便显示出显著的吸引作用，无论甲虫所属的类群如何，捕获量都有所增加。这项研究证明了动物治疗后很长一段时间内伊维菌素残留具有吸引力。它提醒人们注意这种基于体内外寄生虫杀虫剂的缓释丸剂广泛使用的危险性，这是由于昆虫对处理过的粪便有优先吸引力，这可能会危及它们后代的生存。
