在密苏里州牛肉群中Anaplasma marginale的血清和分子流行率
Rosalie A Ierardi1,2, Solomon O Odemuyiwa1,2, Loren Schultz3
1Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO.
American journal of veterinary research
|July 19, 2025
概括
在密苏里州的牛肉群中,亚临床的牛肉质炎是常见的. 患病率高表明需要改善生产者对疾病预防和群体管理实践的教育,以减少Anaplasma边缘传播.
科学领域:
- 兽医科学 兽医科学 兽医科学
- 流行病学 流行病学
- 动物健康 动物健康
背景情况:
- 由Anaplasma marginale引起的牛质炎,对肉牛的福利和生产力产生重大影响.
- 亚临床感染很常见,并且可以在群体内未被发现地传播.
研究的目的:
- 估计密苏里州牛犊牛群中成年肉牛中Anaplasma marginal的流行率.
- 识别与畜牧管理实践相关的潜在风险因素.
主要方法:
- 血清和全血样本从密苏里州34个县的59只牲畜中收集.
- 竞争性ELISA和定量PCR被用于检测抗体和Anaplasma边缘DNA.
- 对单个比例进行了元分析,以估计聚合流行率.
主要成果:
- 亚纳等离子体种类的血清流行率. 在908个血清样本中,抗体水平为46.5% (95% CI,37.9%至55.3%).
- 在757个全血样本中,在40.7% (95% CI,29.3%至53.2%) 检测到亚纳等离子体边缘DNA.
- 制造商报告说,诸如针头再利用和设备过度消毒等管理做法会增加疾病风险.
结论:
- 在密苏里州的牛肉牛中,亚临床牛肉形症非常普遍,与邻近的州是一致的.
- 需要加强生产者对生物安全和疾病传播减少战略的教育.
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