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在牛胎盘组织中检测克拉米迪亚和克拉米迪亚类生物

Hans Van Loo¹, Osvaldo Bogado Pascottini¹, Stefaan Ribbens²

¹Department of Internal Medicine, Reproduction, and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.

Reproduction in domestic animals = Zuchthygiene

|June 8, 2023

概括

在比利时的堕胎案例中,在牛胎盘组织中经常检测到帕拉克拉米迪亚acanthamoebae. 这一发现,以及观察到的胎盘病变,表明这种病原体在牛堕胎中可能发挥作用.

科学领域:

兽医微生物学兽医微生物学
牛病理学牛病理学

背景情况:

在畜牧业中,公牛流产给畜牧业带来了重大的经济挑战.
了解牛堕胎的病因因素对于有效的疾病控制至关重要.

研究的目的:

调查克拉米迪亚种类的流行情况. 在比利时的堕胎和非堕胎病例中,在牛胎盘组织中发现了P. acanthamoebae和P.
为了将这些病原体的存在与胎盘中的组织病变相关联.

主要方法:

聚合酶连锁反应 (PCR) 用于检测205个牛胎盘样本中的Chlamydia spp.,Chlamydia abortus,Chlamydia psittaci和Parachlamydia acanthamoebae.
在101个样本的子集上进行了组织病理学检查,以确定克拉米迪亚诱导的病变,如胎盘炎和血管炎.

主要成果:

克拉米迪亚 spp. 的发生. 在5.4%的病例中检测到,其中3个阳性C. psittaci. 没有检测到C.流产.
在36%的样本中发现了Parachlamydia acanthamoebae,在堕胎病例 (44%) 和非堕胎病例 (7.3%) 相比,堕胎病例显著增加.
组织病变,包括性/化的胎盘炎和血管炎,在18.8%的样本中观察到,在堕胎病例中更为频繁. 胎盘炎症/亡与P. acanthamoebae的检测有关.

结论:

检测可以检测出 Chlamydia spp. 特别是P. acanthamoebae在牛堕胎病例中,加上特有的胎盘病变,表明它们在比利时作为堕胎剂的潜在作用.
需要进一步的研究来阐明这些病原体在牛流产中的特定作用,并考虑将它们纳入监测计划.

关键词:

堕胎堕胎堕胎堕胎堕胎堕胎堕胎堕胎牛肉类的牛肉类的牛肉类.诊断诊断诊断诊断诊断诊断感染的感染感染.这是胎盘炎.

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