荷兰乳制品农场的BRSV血清流行和相关风险因素
R Jorritsma1, R de Jong2, M van den Hoven1
1Sustainable Ruminant Health, Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 7, Utrecht 3584 CL, the Netherlands.
Veterinary journal (London, England : 1997)
|November 22, 2024
概括
牛呼吸综合性病毒 (BRSV) 在年轻的荷兰乳牛中仍然非常普遍,75%的小牛和77%的牛群的检测结果呈阳性. 低于最佳的母乳摄入量和高的幼比例是这种特有病毒的关键风险因素.
科学领域:
- 兽医病毒学 兽医病毒学
- 流行病学 流行病学
- 动物健康 动物健康
背景情况:
- 牛呼吸道同胞性病毒 (BRSV) 是牛的重要呼吸道病原体.
- 在荷兰,BRSV是本土的,影响了奶牛场的经济和动物福利.
- 之前的研究强调需要更新荷兰乳制品幼牛的血清流行数据和风险因素分析.
研究的目的:
- 确定荷兰乳制品农场年轻牲畜中BRSV的当前血清流行率.
- 确定与BRSV引入,存在和传播相关的关键风险因素.
- 为荷兰BRSV的潜在控制策略提供信息.
主要方法:
- 在2021-2022冬季期间,从135个奶牛群中对671只小牛进行了截面血清学研究.
- 通过电话调查采访农民,收集有关畜牧管理和潜在风险因素的数据.
- 进行了统计分析,以将血清学结果与已识别的风险因素相关联.
主要成果:
- 在个体小牛水平上观察到高血清阳性率为75%.
- 群体水平的血清流行率达到了77%,表明BRSV的广泛传播.
- 确定的风险因素包括年轻牛与成年牛的比例较高,以及低于最佳的母乳给药.
结论:
- 在荷兰的乳制品年幼牲畜中,BRSV的血清流行率仍然很高,这证实了其特有病的地位.
- 管理实践,如大奶粉的管理和库存密度是关键的风险因素.
- 在国际成功的启发下,对控制计划的进一步调查是有必要的,以减少BRSV的血清流行.
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