Additional Records of Pinching-off Syndrome in White-tailed Eagles.

IF 0.5 4区 农林科学 Q3 VETERINARY SCIENCES
Ivan Literák, Oliver Krone, Paul Baumann, Tadeusz Mizera, Igor Karyakin
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Abstract

Pathological changes involving the feathers of raptors include the pinching-off syndrome (POS). The disease is manifested by defective feather growth, wherein the young, vascularized remiges and rectrices are twisted and prematurely fall out. Upon examination, the feathers that are prematurely shed are found to have a marked constriction at the base of the shaft. Remiges and rectrices reach just 1/2 half to 2/3 thirds of their normal length, after which the blood supply is reduced and dystrophic feathers are dropped. Feather development deteriorates further, and new flight feathers are dystrophic and become progressively shorter with each new feather generation. Affected birds are unable to fly. The first survey of POS in white-tailed eagles (WTE; Haliaeetus albicilla) focused on 33 cases in Germany, Poland, the Czech Republic, the United Kingdom, and Russia from 1975 to 2006 (J Avian Med Surg. 2007;21:103-105). We revealed 43 new cases from 2007 to 2024, identifying these in Germany (n = 15), Poland (n = 9), the Czech Republic (n = 10), Russia (n = 8), and Kazakhstan (n = 1). In addition, 3 cases in Poland, 2 in the Czech Republic, and 1 in both Russia and Kazakhstan were identified from 1999 to 2006 but not published previously. In total, we report 50 new clinical cases of POS in WTE. The investigation thus far into the cause of POS has failed to determine an etiological agent. Based on the association of a higher prevalence of POS in an area occupied by a WTE population with a different genetic structure compared with other WTE populations and based on 6 family cases registered, we support a hypothesis for a genetic cause of POS.

白尾鹰掐断综合症的补充记录。
涉及到猛禽羽毛的病理变化包括捏断综合征(POS)。这种疾病表现为羽毛生长缺陷,其中年轻的,血管化的分枝和分枝扭曲并过早脱落。经过检查,发现过早脱落的羽毛在轴的底部有明显的收缩。鸟和鸟只长到正常长度的1/2到2/3,之后血液供应减少,营养不良的羽毛脱落。羽毛的发育进一步恶化,新的飞行羽毛营养不良,随着每一代新的羽毛逐渐变短。受感染的鸟类无法飞行。首次调查了1975 - 2006年在德国、波兰、捷克、英国和俄罗斯的33例白尾鹰(WTE; halaeetus albicilla)的POS (J Avian Med surgery . 2007;21:103-105)。从2007年到2024年,我们发现了43例新病例,在德国(n = 15)、波兰(n = 9)、捷克共和国(n = 10)、俄罗斯(n = 8)和哈萨克斯坦(n = 1)发现了这些病例。此外,1999年至2006年期间在波兰发现了3例,在捷克共和国发现了2例,在俄罗斯和哈萨克斯坦发现了1例,但以前没有公布。我们总共报告了50例新的临床病例的POS在WTE。到目前为止,对POS病因的调查未能确定病原。基于与其他WTE人群相比,具有不同遗传结构的WTE人群所占地区的POS患病率较高的关联,以及基于6个登记的家庭病例,我们支持POS遗传原因的假设。
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来源期刊
Journal of Avian Medicine and Surgery
Journal of Avian Medicine and Surgery 农林科学-兽医学
CiteScore
0.90
自引率
0.00%
发文量
52
审稿时长
>36 weeks
期刊介绍: The Journal of Avian Medicine and Surgery is an international journal of the medicine and surgery of both captive and wild birds. Published materials include scientific articles, case reports, editorials, abstracts, new research, and book reviews.
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