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来自挪威农场的无症状猪中Balantioides coli的分子鉴定

Luz Aurora Martinez-Contreras¹, M Rey Toleco², Yohannes Seyoum²

¹University of Stavanger, Department of Chemistry, Bioscience, and Environmental Engineering, Norway; Facultad de Bioanálisis, Region Veracruz, Universidad Veracruzana, Mexico.

Veterinary parasitology, regional studies and reports

|February 6, 2026

概括

肠道寄生虫Balantioides coli在挪威猪中很常见,在70.4%的动物中发现,尽管严格的生物安全. 这项研究确立了其在挪威的特有病状.

科学领域:

兽医寄生虫学兽医寄生虫学
动物健康动物健康
微生物学微生物学

背景情况:

大肠杆菌 (Balantioides coli) 是猪的肠道寄生虫,具有动物感染潜力.
尽管生物安全标准很高,但它在挪威猪群中的流行率尚不清楚.
了解大肠杆菌的流行对于动物福利和生产力至关重要.

研究的目的:

为了评估在挪威猪种群中Balantioides coli的发生和流行情况.
确定风险因素和与年龄相关的患病率.
为未来的监测和控制策略建立一个基准.

主要方法:

从挪威9个设施的125头猪身上采集了便样本.
微观检查 (湿装,麦克马斯特浮动) 和针对18SrRNA基因的PCR用于检测.
测序和遗传学分析证实了寄生虫的身份和类型.

主要成果:

在70.4%的猪中通过PCR检测出大肠杆菌,农场的流行率从33%到100%不等.
患病率因年龄组不同而有所不同,在猪中患病率最高 (93.5%),在哺乳小猪中患病率最低 (16.7%).
所有检测到的分离物属于通常在家猪中发现的II型组.

结论:

不管严格的生物安全措施,在挪威的猪群中,大肠杆菌是本土的.
这种寄生虫似乎会导致无症状的感染,但它对福利和生产力的影响需要进一步调查.
这项研究提供了监测和管理密集生猪养殖中大肠杆菌的基本基线数据.

关键词:

巴兰托伊德斯大肠杆菌基里亚的基里亚人.这是一种肠道寄生虫.猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪动物传染病是一种动物感染的疾病.

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