• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Avian Pathology >Investigations on the aetiology of pinching off syndrome in four white-tailed sea eagles (Haliaeetus albicilla) from Germany
【24h】

Investigations on the aetiology of pinching off syndrome in four white-tailed sea eagles (Haliaeetus albicilla) from Germany

机译：德国四只白尾海雕（Haliaeetus albicilla）捏捏综合征的病因学调查

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

The purpose of this study was to investigate the aetiology of the pinching off syndrome (POS), a generalized feather abnormality affecting free-living nestling of the white-tailed sea eagle (Haliaeetus albicilla) in Europe. For the first time, extensive clinical, haematological, biochemical, virological, bacteriological, nutritional, histopathological, parasitological and electron microscopical examinations were performed on three females and one male suffering from POS. Early and increased cytokeratin formation at the base of regenerating feathers and their follicle was observed in affected birds. Ultrathin sections of the feather papillae revealed an extended stratum transitivum and a compact, thickened keratinized stratum corneum. The transitional cells in POS feathers contained vacuoles often associated with the nucleus. Lipofuscin accumulations in neurons, glial cells and islet cells of the pancreas were found in all examined birds. It was not clear whether there is an association between the occurrence of lipofuscin and POS. No evidence was found to suggest that infectious agents (parasites, bacteria, fungi or viruses), malnutrition or hormonal imbalances are involved in the aetiology of POS in white-tailed sea eagles. It remains unclear whether there is a genetic background of POS.
机译：这项研究的目的是调查夹捏综合症（POS）的病因，这是一种普遍的羽毛异常现象，会影响欧洲白尾海雕（Haliaeetus albicilla）的自由生活雏鸟。首次对三名患有POS的女性和一名男性进行了广泛的临床，血液学，生物化学，病毒学，细菌学，营养，组织病理学，寄生虫学和电子显微镜检查。在受影响的鸟类中观察到在再生羽毛及其卵泡基部早期和增加的细胞角蛋白形成。羽毛乳头的超薄部分显示出延长的过渡层和紧密的，增厚的角质化角质层。 POS羽毛中的过渡细胞含有通常与细胞核相关的液泡。在所有检查的鸟类中均发现脂褐素在胰腺神经元，神经胶质细胞和胰岛细胞中积累。尚不清楚脂褐素的发生与POS之间是否存在关联。没有证据表明白尾海鹰的POS的病因包括传染原（寄生虫，细菌，真菌或病毒），营养不良或荷尔蒙失调。尚不清楚POS是否有遗传背景。

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