亚临床乳腺炎病原体Staphylococcus aureus,Streptococcus spp.的病因学和抗菌素耐药性 和肠球杆菌 spp. 在羊奶中
Ionica Iancu1, Violeta Igna2, Sebastian Alexandru Popa3
1Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, University of Life Sciences "King Mihai I" from Timişoara, Timişoara, Romania.
Veterinary research communications
|November 22, 2024
概括
亚临床乳腺炎影响了罗马尼亚的40.6%的图尔卡纳绵羊,金黄色葡萄球菌是主要原因. 羊奶中的病原体具有高抗微生物耐药性,这对公众健康构成风险.
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:
- 亚临床乳腺炎是奶羊生产中的一个重大问题,影响羊群健康和牛奶质量.
- 图尔卡纳羊是罗马尼亚普遍存在的品种,因此对它们的健康状况的研究对农业部门至关重要.
- 乳腺炎病原体中的抗菌素耐药性 (AMR) 是对动物和人类健康的日益严重的全球威胁.
研究的目的:
- 确定罗马尼亚图尔卡纳绵羊中亚临床乳腺炎的流行率和病因.
- 分析从受感染的羊奶中分离出来的关键细菌病原体的抗微生物敏感性模式.
- 评估羊奶原料中AMR病原体对公共卫生的潜在影响.
主要方法:
- 通过使用Milchtest和加利福尼亚乳腺炎测试 (CMT) 分析了360只图尔卡纳羊在三个哺乳期的牛奶样本.
- 对146只被诊断患有亚临床乳腺炎的绵羊的牛奶进行了微生物学分析.
- 对抗微生物敏感性测试是在 Staphylococcus aureus,Streptococcus spp. 和 Enterococcus spp. 的孤立菌株上进行的.
主要成果:
- 在研究的绵羊群中,检测到亚临床乳腺炎的患病率为40.6%.
- 金黄色葡萄球菌 (88.4%) 是主要的病原体,其次是Streptococcus spp. (9.6%) 和Enterococcus spp. 这两种菌种. 这是4.8%的比例.
- 观察到各种抗生素的高耐药率,包括多素B,新生物素和四环素,因农场和微生物而异.
结论:
- 图尔卡纳绵羊中亚临床乳腺炎的高患病率和显著的抗菌素耐药性表明,未来治疗不有效的潜在风险.
- 在未经巴氏消毒的羊奶中存在AMR病原体,这对公众健康构成直接威胁.
- 对抗性基因进行进一步的分子研究是必要的,以全面理解和有效的控制策略.
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