临床乳腺炎和细菌分泌的严重程度
Isabel Krebs1, Yanchao Zhang1, Nicole Wente1
1Department of Bioprocess Engineering, Microbiology, Faculty II, Hannover University of Applied Sciences and Arts, 30453 Hannover, Germany.
Pathogens (Basel, Switzerland)
|September 28, 2023
概括
高致病原体流失,低体细胞计数以及高温和湿度等环境因素与乳牛的严重临床乳腺炎 (CM) 有关. 大肠杆菌是发现的最常见的病原体.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 微生物学 微生物学
- 动物科学动物科学
背景情况:
- 临床乳腺炎 (CM) 是乳牛的一个重要疾病,影响动物福利和农场经济.
- 了解导致CM严重程度的因素对于有效的管理和治疗策略至关重要.
研究的目的:
- 调查与乳牛临床乳腺炎 (CM) 严重程度相关的因素.
- 确定有氧和无氧微生物在CM中的作用.
- 确定病原体脱落,动物数据和环境条件与CM严重性之间的关系.
主要方法:
- 对249个CM病例进行横截面研究.
- 牛奶样本的微生物学检查 (有氧和无氧化).
- 对病原体脱落的定量检查,收集动物数据,室外温度和相对湿度.
主要成果:
- 大肠杆菌是最常见的分离病原体 (35.2%),特别是在严重的CM中 (50.6%).
- 严重的乳腺炎显示出高死亡率 (34.5%).
- 高的病原体分泌,低的前体细胞计数 (SCC),高的室外温度和高湿度与严重的CM有关.
结论:
- 大肠杆菌是严重的CM的主要病原体.
- 环境因素和宿主免疫状况 (以SCC表示) 在CM严重性方面发挥着重要作用.
- 有效的CM管理需要考虑病原体类型,环境条件和动物健康状况.
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