管理因素影响阿纳等离子体边缘传播的影响分析
Nicolás Morel1, Mariano Mastropaolo2, Susana Torioni de Echaide1
1Instituto de Investigación de la Cadena Láctea (IDICAL, INTA-CONICET), Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Rafaela (INTA E.E.A. Rafaela), Ruta 34 km 227, Rafaela, Santa Fe CP 2300, Argentina.
Veterinary parasitology
|August 7, 2024
概括
在阿根廷,近一半的牛群面临着阿纳等离子体感染疫情的风险. 不良的控制和某些养做法增加了这种风险,突出显示了Rhipicephalus microplus在疾病传播中的作用.
科学领域:
- 兽医流行病学 兽医流行病学
- 寄生虫学的寄生虫学
- 动物健康 动物健康
背景情况:
- 牛质炎,由边缘性质炎引起,对牛的健康构成重大威胁.
- 了解流行病学因素对于防止在特有地区爆发疫情至关重要.
- 以前的牛宝贝菌病模型被调整为研究A.边缘动力学.
研究的目的:
- 为了确定影响阿根廷半干旱地区牛等离子症流行病学的关键因素.
- 评估 A. marginale. 牛群的特有稳定性/不稳定性状态.
- 探索畜牧业实践与A.边缘传播之间的关联.
主要方法:
- 一项涉及58只小牛 (4.5-8.5个月) 的横截面观测研究.
- 使用特定年龄血清流行率 (ELISA) 计算A.边缘注射率 (h).
- 使用了通用线性模型,空间扫描统计数据和斯皮尔曼相关性.
主要成果:
- 43%的群体在本土不稳定性 (EI) 的边缘性A. ,表明疫情的风险.
- 以料为基础的饮食,不充分的控制 (仅限甲状腺) 和频繁的Haematobia irritans治疗增加了EI的风险.
- 没有检测到群体免疫状态的空间聚类.
- 在农场之间观察到A.边际疫苗接种率的显著差异.
- 在A. marginal h和Babesia bovis/B.之间发现了强烈的正相关性. 大小姐姐H.H.
结论:
- 畜牧业实践显著影响牛等离子体病的风险.
- Rhipicephalus microplus 在 A. marginale 的传播中起着至关重要的作用,与巴贝西亚物种一起.
- 有针对性的载体控制和改进的管理策略对于减轻形体病爆发至关重要.
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