...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental toxicology and chemistry >TERATOGENIC EFFECTS OF INJECTED METHYLMERCURY ON AVIAN EMBRYOS
【24h】

TERATOGENIC EFFECTS OF INJECTED METHYLMERCURY ON AVIAN EMBRYOS

机译：注射甲基汞对禽类胚胎的致畸作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Controlled laboratory studies with game farm mallards (Anas platyrhynchos) and chickens (Gallus gallus) have demonstrated that methylmercury can cause teratogenic effects in birds, but studies with wild species of birds are lacking. To address this need, doses of methylmercury chloride were injected into the eggs of 25 species of birds, and the dead embryos and hatched chicks were examined for external deformities. When data for controls were summed across all 25 species tested and across all types of deformities, 24 individuals out of a total of 1,533 (a rate of 1.57%) exhibited at least one deformity. In contrast, when data for all of the mercury treatments and all 25 species were summed, 188 deformed individuals out of a total of 2,292 (8.20%) were found. Some deformities, such as lordosis and scoliosis (twisting of the spine), misshapen heads, shortening or twisting of the neck, and deformities of the wings, were seldom observed in controls but occurred in much greater frequency in Hg-treated individuals. Only 0.59% of individual control dead embryos and hatchlings exhibited multiple deformities versus 3.18% for Hg-dosed dead embryos and hatchlings. Methylmercury seems to have a widespread teratogenic potential across many species of birds.
机译：对野味野鸭（Anas platyrhynchos）和鸡（Gallus gallus）进行的对照实验室研究表明，甲基汞可对鸟类造成致畸作用，但缺乏对野生鸟类的研究。为了满足这一需求，向25种鸟类的卵中注射了一定剂量的氯化甲基汞，并检查了死亡的胚胎和孵出的雏鸡的外部畸形。当汇总测试的所有25个物种和所有类型的畸形的对照数据时，总共1,533个中的24个个体（比率为1.57％）表现出至少一种畸形。相反，当汇总所有汞处理和所有25种汞的数据时，在总共2292个（8.20％）中发现了188个畸形个体。在对照组中很少观察到某些畸形，例如脊柱前凸和脊柱侧弯（脊椎扭曲），头部畸形，脖子缩短或扭曲以及机翼畸形，但在接受汞治疗的个体中发生的频率更高。仅有0.59％的个体对照死胚和孵化显示出多种畸形，而Hg剂量的死胚和孵化显示为3.18％。甲基汞似乎在许多鸟类中具有广泛的致畸潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号