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在乌拉圭群体中,与绵羊脚病变相关的因素:一项横截面研究
Waldemir Santiago Neto1, Ana Crescionini2, Ludmila Slimovich1
1Plataforma de Investigación en Salud Animal (PSA), Instituto Nacional de Investigación Agropecuaria (INIA), La Estanzuela, Colonia, Uruguay.
Frontiers in veterinary science
|June 11, 2025
概括
由Dichelobacter nodosus引起的绵羊脚受农场管理的影响. 特定的做法,如足浴和皮剪裁保护羊,而疫苗和根除计划可能会增加风险.
科学领域:
- 兽医科学 兽医科学 兽医科学
- 动物健康 动物健康
- 绵羊生产 绵羊生产
背景情况:
- Ovine footrot是一种传染性多因子疾病,主要是由Dichelobacter nodosus引起的.
- 它在经济上对绵羊生产产生重大影响,在全球范围内的流行率各不相同.
- 了解管理影响对于有效的控制策略至关重要.
研究的目的:
- 调查与乌拉圭绵羊的footrot分数相关的管理和农场级因素.
- 为了确定影响Dichelobacter nodosus感染的保护性和风险因素.
- 为了告知特定环境的预防性干预措施,防止绵羊的足迹.
主要方法:
- 来自乌拉圭60个羊群的6139只羊的临床评估 (2021-2024年).
- 在农场层面对Dichelobacter nodosus的PCR确认.
- 顺序式的多变量混合效应模型分析足迹得分和管理数据.
主要成果:
- 17.7%的羊表现出脚病变,主要是严重的病例.
- 高水平的农场相关性 (57.2%的ICC) 表明了重要的农场效应.
- 保护因素包括品种,种群规模,入境卫生协议,甲素足浴,肉类生产目的,脚剪裁和兽医协助.
- 步行者疫苗和控制/根除计划显示有风险效应.
结论:
- 特定的羊群管理实践显著影响了Dichelobacter nodosus感染.
- 农场层面的干预措施,如改善生物安全和足部护理,是防止脚的关键.
- 目前的足疫苗和根除计划可能需要在乌拉圭的背景下重新评估.
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