与加利福尼亚州牛肉业务中感知到的Anaplasma边缘感染和临床阿纳普拉斯莫斯病例相关的因素
1Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, United States.
Ticks and tick-borne diseases
|April 21, 2024
概括
加利福尼亚州的牛肉养殖场报告了牛等离子症的高发病率,这是一个由传播的疾病. 管理实践各不相同,疫苗接种和封闭群体与较少的临床病例有关,突出需要改善生产者教育和控制措施.
科学领域:
- 兽医昆虫学 兽医昆虫学
- 动物传染病 动物传染病
- 农业管理 农业管理
背景情况:
- 由Anaplasma marginale引起的牛质炎是一种严重的传播疾病,影响美国的牛.
- 有效的预防和控制策略对于牛肉业务至关重要,以减轻与疾病相关的经济损失.
研究的目的:
- 评估加利福尼亚州牛肉业务当前的阿纳等离子体感染预防和控制管理实践.
- 为了确定管理活动受到被认为群体暴露于Anaplasma边缘感染或临床病例的影响程度.
主要方法:
- 一项调查邮寄给2,621名加利福尼亚州的牛肉养殖场主,调查涉及等离子体病状况,群体人口统计,管理实践和环境因素.
- 调查加权的千平方测试和概括估计方程 (GEE) 用于分析管理差异和与临床病例相关的因素.
主要成果:
- 亚纳等离子体感染的总体感知患病率为26.0%,其中17.1%报告临床病例,在中部海岸地区最高.
- 管理实践,包括疫苗接种和群体关闭,在被认为感染和没有感染的群体之间存在显著差异.
- 与较高临床病例概率相关的因素包括位置 (中部海岸),较大的群体规模,/控制,封闭群体和阿纳普拉斯马疫苗接种.
结论:
- 在加利福尼亚州的牛肉群中,可能低估了牛肉形.
- 很少实施关键管理措施,如针头更换和测试群体增加.
- 显然需要加强生产者对牛等离子体病控制和预防的教育.
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