Department of Wildlife Diseases, Leibniz Institute for Zoo and Wildlife Research (IZW), P.O. 601103, 10252, Berlin, Germany.
Institute of Animal Nutrition (ITE), Bundesallee 37, 38116, Braunschweig, Germany.
Ambio. 2019 Sep;48(9):1065-1071. doi: 10.1007/s13280-019-01183-0. Epub 2019 Apr 16.
Lead poisoning of birds of prey from ingestion of ammunition lead has been well documented. Alternative, lead-free ammunition is widely available, but the toxicokinetics of other metals in birds are poorly understood. We tested the erosion of lead, copper, zinc, iron and brass by feeding domestic Pekin ducks (Anas platyrhynchos forma domestica) defined numbers of small metal pellets. The accumulation of these metals was analysed in the breast muscle, brain, pancreas, liver and kidney. Four weeks after application, the ducks were euthanized and necropsied, internal organs tested for metal accumulation and gizzard pellets collected and weighed to record loss by erosion. Degree of erosion was highest in zinc pellets (81% mass loss), followed by iron (46%) and lead (45%) and was only marginal in copper and brass. Only lead showed highly elevated levels of accumulation in organs compared to controls.
鸟类捕食者因摄入弹药铅而导致的铅中毒已有充分的记录。目前，广泛使用的是无铅弹药，但鸟类体内其他金属的毒代动力学仍知之甚少。我们通过给家养北京鸭（Anas platyrhynchos forma domestica）投喂一定数量的小金属丸，测试了铅、铜、锌、铁和黄铜的侵蚀情况。这些金属在胸肌、大脑、胰腺、肝脏和肾脏中的积累情况进行了分析。应用 4 周后，对鸭子进行安乐死并解剖，测试内脏器官的金属积累情况，并收集和称重砂囊丸，以记录侵蚀造成的损失。锌丸的侵蚀程度最高（质量损失 81%），其次是铁（46%）和铅（45%），而铜和黄铜的侵蚀程度则较低。只有铅在器官中的积累水平明显高于对照组。
