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Halmann等和Velan等首先将固相酶联免疫技术和化学发光技术结合起来建立了一种很有前途的化学发光免疫测定法(Chemiluminescence immunoassay简称CLIA)。 CLIA在检测细菌、病毒及其抗体和肠毒素等方面都显示了高度的敏感性和特异性。 相似文献
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《畜牧与兽医》2020,(10)
为了建立动物血清中的小反刍兽疫病毒(peste des petits ruminants virus,PPRV)抗体化学发光免疫分析检测方法,采用PPRV N融合蛋白与相应单克隆抗体对化学发光抗体检测方法进行了研究。结果显示:建立的检测方法能够特异性地定量检测羊血清中的PPRV N蛋白抗体,敏感性高,特异性强,对其他相关的动物病原无交叉反应,组内与组间变异系数分别低于10%和15%,具有良好的重复性;对该方法的特异性指标、敏感性指标进行了验证,与法国IDVET公司的PPRV抗体检测试剂盒进行比较,阳性样品符合率为95.02%,阴性样品符合率为82.08%,总符合率为90.33%。结果表明:建立的PPRV抗体化学发光免疫分析检测方法,特异性高、敏感性强,操作简单、快速,具有较高的应用推广价值。 相似文献
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环介导等温扩增(loop-mediated isothermal amplifi cation,LAMP)技术是一门新兴的分子生物学检测技术,因其具有特异性强、敏感性高、简单、快捷及不需要昂贵的仪器设备等特点,受到了生物医学研究者的高度关注。目前,该方法已经被广泛应用于各种病原微生物检测。本文综述了近年来LAMP在动物疫病检测中的具体应用实例和目前的研究进展,并对LAMP方法在动物疫病诊断中的应用前景做了展望。 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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