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开发一种侧流装置,用于快速同时多次检测牛乳腺炎的一些常见细菌原因
Rafik Hamed Sayed1, Rafik Twfik Soliman2, Shaimaa Abdelall Elsaady1
1CLEVB, Agriculture Research Center, Cairo, Egypt.
Journal of advanced veterinary and animal research
|August 3, 2023
概括
一个新的5组合侧流免疫染色学套件 (LFK) 能够快速,同时检测常见的牛乳腺炎病原体,如大肠杆菌和金黄色杆菌. 这种诊断工具为传统方法提供了一个简单,方便的替代方案,在不到10分钟的时间内产生结果.
科学领域:
- 兽医诊断 兽医诊断 兽医诊断 兽医诊断
- 免疫染色学是一种免疫染色学.
- 细菌学 细菌学是一门学科.
背景情况:
- 牛乳炎是奶牛养殖的一个重大问题,需要快速准确地识别致病性细菌病原体.
- 诊断牛乳腺炎的传统微生物学方法耗时,劳动密集,需要专门的实验室设施和专业知识.
- 需要一个快速的,现场诊断工具,同时检测多种导致乳腺炎的细菌.
研究的目的:
- 开发一个5组横流免疫染色学套件 (LFK),用于同时检测导致牛乳腺炎的五种常见细菌病原体.
- 与传统的细菌学方法相比,评估开发的LFK的诊断性能 (灵敏度,特异性,准确性).
- 评估预处理步骤的潜力,以提高套件的性能.
主要方法:
- 制备和结合病原体特异性抗体 (子和几内亚猪PAbs) 与纳米金和固定在纤维素条上.
- 开发一个5组合的LFK设备,具有专用通道,用于同时检测大肠杆菌,黄金葡萄球菌,肺炎菌,Streptococcus agalactiae和Streptococcus pyogenes
- 使用牛奶样本对LFK进行评估,将结果与黄金标准细菌学检查进行比较,并确定检测极限.
主要成果:
- 开发的5组合LFK显示了检测目标细菌的平均灵敏度,特异性和准确度分别为93.90%,80.83%和90.53%.
- 最低可检测的微生物数量低至10^3个殖民地形成单位/毫升.
- 牛奶样本在三糖大豆中进行预化,显著提高了试剂盒的灵敏度,结果在不到10分钟内就可获得.
结论:
- 开发的5-combi LFK是一种简单,方便和快速的诊断工具,用于同时识别导致牛乳腺炎的关键细菌病原体.
- 牛乳基因组为传统方法提供了一个有前途的替代方案,可以在乳牛群中更快地进行诊断和潜在的更快的治疗决定.
- 优化样品预处理可以进一步提高LFK的诊断效率.
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