分析西安市奶牛的偏结核病患病率和相关性能参数
Xuejian Zhao1,2, Qiang Liang3, Haipeng Feng1
1Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China.
Veterinary sciences
|April 23, 2025
概括
实施"隔离+消除"战略显著减少了乳牛中Mycobacterium paratuberculosis感染的发生. 这种对牛结核病的控制改善了牛奶质量,生殖性能和农场的经济效益.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物科学动物科学
- 流行病学 流行病学
背景情况:
- 牛甲结核病,是由Mycobacterium avium亚种引起的. 甲状腺肺结核,对乳制品农场的生产力和经济构成重大威胁.
- 有效的控制策略对于管理感染率和减轻大规模乳制品运营中相关损失至关重要.
研究的目的:
- 评估西安市一个大型乳制品农场中Mycobacterium paratuberculosis的流行情况.
- 评估"隔离+消除"模式对奶牛生产,繁殖和经济结果的影响.
- 为未来中国奶牛农场的结核根除计划提供指导.
主要方法:
- 在4488个奶牛血清中使用ELISA套件检测结核病抗体.
- 从2021年到2024年对牛奶生产,健康指标,生殖指数和制药支出进行了全面分析.
- 感染率与生产,生殖表现和经济数据的相关性分析.
主要成果:
- 结核病的患病率从2021年的6.76%下降到2024年的3.58%.
- 减少感染率与改善的牛奶质量 (更高的脂肪/蛋白质,更好的稳定性,更低的SCC) 和生殖性能 (增加第一次服务怀孕,减少子宫内膜炎/腹) 相关联.
- 每日牛奶量与乳糖持续性和产量峰值日有正相关性,与平衡性有负相关性.
结论:
- "隔离+消除"模式有效地减少了乳牛群中Mycobacterium paratuberculosis的发生率.
- 控制牛结核病导致牛奶质量,生殖效率的可测量改善,降低了药物成本.
- 这些发现支持减少结核病的必要性,并指导中国乳制品农场未来的根除工作.
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