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为了解新疆地区马衣原体病的流行现状和特点,本研究于2013年~2016年从新疆伊宁、阿勒泰、巴州、第六师、乌鲁木齐市及昌吉州等地收集826份马血清样品,采用间接血凝试验(IHA)进行衣原体抗体检测,对不同品种、性别、饲养方式及地域来源马的衣原体抗体阳性率进行统计分析。结果显示,2013年~2016年,马衣原体抗体阳性率依次为0、2.41%、7.30%和3.19%,平均阳性率为4.26%。其中,纯血马、焉耆马、哈萨克马和伊犁马衣原体抗体阳性率分别为8.98%、3.13%、4.23%和1.52%;公马与母马衣原体抗体阳性率分别为41.90%和2.30%;伊宁、阿勒泰、巴州、第六师、乌鲁木齐市和昌吉州马衣原体抗体阳性率分别为2.56%、28.6%、3.13%、0、1.71%和4.00%;不同品种、性别和地域间马衣原体感染率差异显著(p<0.05)。纯血种公马衣原体抗体阳性率显著高于母马(p<0.05);规模化养殖场马阳性率低于散养马,并且引进马中衣原体阳性率显著高于本土马。本研究提示在马匹引种过程中,检疫部门应该酌情开展衣原体的感染检测,对促进马产业健康发展具有重要意义。 相似文献
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[目的]调查贵州省马群马流感病毒、马疱疹病毒1/4型或马动脉炎病毒感染情况。[方法]用酶联免疫吸附试验(ELISA)对采自贵州省9个市(州)及第九届民运会参赛马匹的363份血清进行了A型流感病毒、马疱疹病毒1/4型、马动脉炎病毒和非洲马瘟病毒抗体检测。[结果]结果显示这四种病原的血清抗体群阳性率分别为79.49%(31/39)、7.69%(3/39)、43.59%(17/39)和0%(0/39),贵州本地役用马和赛马差异不显著(P>0.05);血清抗体个体阳性率分别57.85%(210/363)、1.38%(5/363)、11.29%(41/363)和0%(0/363),其中贵州本地役用马阳性率分别为38.16%(87/228)、4.39%(1/228)、8.33%(19/228)和0%(0/228),赛马阳性率分别为91.11%(123/135)、2.96%(4/135)、16.30%(22/135)和0%(0/135)。相比之下,A型流感病毒及马动脉炎病毒抗体阳性率存在差异(P<0.01或0.01<P<0.05),马疱疹病毒1/4型病毒抗体阳性率差异不显著(P>0.05)。[结论]调查表明贵州省部分马群存在不同程度的马流感病毒、马疱疹病毒1/4型或马动脉炎病毒感染。 相似文献
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新疆部分地区牛新孢子虫病的血清学调查 总被引:7,自引:0,他引:7
应用间接免疫荧光抗体试验,酶联免疫吸附试验,斑点酶联免疫吸附试验3种检测方法,对新疆地区部分牛和牦牛的血清样品进行新子虫病抗体检测。结果显示,298头份牛血清全部为阴性,4份牦牛血清1份为阳性。 相似文献
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应用猪圆环病毒2型抗体酶联免疫检测试剂盒,测定了青海省省内8个猪场的1 000个血清样本,对不同地区、不同年龄猪的进行了血清学调查.结果显示,青海省8个猪场均有猪圆环病毒2型( PCV-2)感染,全省猪的PCV-2感染的平均血清阳性率为25.9%,其中母猪、种公猪、生长育肥猪、保育猪及哺乳仔猪抗体阳性率分别35.3%、... 相似文献
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上海市松江区猪圆环病毒Ⅱ型感染的血清学调查 总被引:4,自引:1,他引:4
应用酶联免疫吸附试验对上海市松江区新浜、泖港、叶榭、车墩、石湖荡、洞泾、新桥、泗泾、余山和中山等地区的19个规模化养猪场,以及12户个体饲养户,送检的589份猪血清进行了猪Ⅱ型圆环病毒(PCV2)抗体检测。共检出抗体阳性血清329份,其中经产母猪血清144份,后备母猪血清82份,2月龄猪血清103份;总抗体阳性率为55,86%,经产母猪抗体阳性率为62.07%,后备母猪抗体阳性率为57.34%,2月龄猪抗体阳性率为48.13%。结果表明松江区猪场 PCV2的感染情况较普遍。 相似文献
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旨在了解新疆地区梅迪维斯纳病的流行现状和特点,本研究于2017—2019年从新疆阿克苏、阿勒泰、巴州、昌吉、哈密、石河子和伊宁收集2 647份羊血清样品,采用酶联免疫吸附试验(ELISA)进行梅迪维斯纳病抗体检测,对不同地区、品种、性别来源绵羊的梅迪维斯纳病抗体阳性率进行统计分析。结果显示,阿克苏、阿勒泰、巴州、昌吉、哈密、石河子和伊宁梅迪维斯纳病抗体阳性率分别为28.95%(121/418)、0.67%(5/751)、2.50%(2/80)、4.91%(8/163)、1.14%(3/264)、1.22%(1/82)和17.10%(152/889);其中,阿勒泰羊、和田羊、哈萨克羊、美利奴羊、萨福克羊、小尾寒羊的梅迪维斯纳病抗体阳性率分别为0.35%(1/288)、1.14%(3/264)、22.87%(231/1 010)、13.86%(42/303)、1.85%(13/702)和2.50%(2/80);新疆本土品种羊与引进品种羊血清梅迪维斯纳病抗体阳性率分别为0.79%(8/1 015)、1.58%(15/947);公羊与母羊梅迪维斯纳病抗体阳性率分别为3.59%(34/946)、15.17%(258/1 701)。本研究结果分析表明,需要对梅迪维斯纳病进行早期检疫,及时发现并淘汰病羊,改善饲养管理条件,这对促进羊产业健康发展具有重要意义。 相似文献
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Three abortigenic Indian isolates of equine herpesvirus-1 (EHV-1) (Tohana, Hisar and Bikaner), along with two exotic abortigenic
isolates (AB4 and V592) and another EHV-1 isolate (Jind) obtained from a case of perinatal foal mortality, were studied for
variability. For this purpose, PCR and restriction endonuclease (RE) digestion techniques were used simultaneously as a DNA
fingerprinting system. Nine different regions of EHV-1 virus were amplified by PCR using primer pairs specific for the regions
and the products obtained from these regions were subsequently subjected to various restriction endonucleases to further assess
the variability in the number of RE sites as well as in their positions. No difference was observed in all the four abortigenic
isolates in terms of the size of different PCR products amplified by all the nine primer pairs, except for primer pairs ‘E’
and ‘C’. PCR products obtained with primer pair E revealed that Tohana and Bikaner isolates were most similar while Hisar
isolate was like V592 isolate. However, the PCR product obtained from Jind isolate had a size between the PCR products of
Hisar and Tohan/Bikaner isolates. The primer pair ‘C’ used to amplify the region between 1151 to 3679 in ‘Gene 1,2,3’ clearly
differentiated the EHV-1 isolate obtained from a case of perinatal foal mortality from isolates obtained from abortion cases.
This primer pair needs to be exploited more extensively for use as a potential marker for differentiating the EHV-1 isolates,
mainly the abortion cases from perinatal foal mortality ones. Restriction endonuclease studies done with PCR product of all
the isolates with various primer pairs did not reveal any changes in the position or number of RE sites present in the products
amplified, indicating no variation in different RE sites within the amplified PCR products. However, this study clarified
that all the Indian isolates belonged to the IP group of EHV-1. 相似文献
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大庆市及周边地区非免疫猪群猪圆环病毒感染情况调查 总被引:1,自引:0,他引:1
为了解大庆市及周边地区猪群中PCV的感染情况,应用ELISA和PCR技术对采自大庆市5区4县及周边地区55个村屯/猪场未免疫PCV2疫苗猪血清样本649份,5家病猪场和6家屠宰场组织样本448套,进行血清学和分子生物学检查,并对检测结果进行了比较分析。结果显示,大庆市及周边地区未免疫PCV2疫苗猪血清样品PCV2抗体平均阳性率为54.70%,其中断奶仔猪样品阳性率为50.68%,育肥猪样品为70.00%,繁育母猪样品为54.70%。组织样品PCV1阳性率为4.46%,PCV2阳性率为22.32%。调查结果可为确定地区流行毒株序列提供原始材料和制定科学防控措施提供依据。 相似文献
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Listeria monocytogenes is a foodborne pathogen that causes a wide spectrum of diseases in humans and animals. Enzyme linked immunosorbent assays (ELISA) [indirect and avidin-biotin (A-B)] for detecting L. monocytogenes antibodies in bovine milk samples (n = 2060) were standardized and evaluated by comparison with bacteriological examination. The tests were standardized by checker board titration. Highly purified listeriolysin O (LLO) was used as an antigen. Receiver operating characteristic (ROC) analysis was performed to decide the cut-off values. The ROC analysis revealed the sensitivities of indirect and A-B ELISA as 100% and specificities as 97.1 and 99.9% respectively. Listeria monocytogenes was isolated from 105 (5.1%) milk samples collected from 52 farms. Anti-LLO IgG antibodies were detected from 137 and 112 milk samples when tested by indirect and A-B ELISA respectively. Of the 52 farms screened, 28 (53.8%) yielded one or more isolates of L. monocytogenes and 33 (63.5%) of the farms had one or more animals simultaneously positive by one or both the assays for anti-LLO antibodies. 相似文献
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间接ELISA检测鸭肝炎病毒抗体的研究 总被引:7,自引:0,他引:7
以蔗糖密度梯度离心法纯化的病毒作为包被抗原,建立了检测鸭肝炎病毒(DHV)抗体的间接ELISA方法。经特异性及重复性试验,效果良好。ELISA效价与琼扩、中和效价存在平行关系。经ELISA检测,1日龄雏鸭免疫后,4日龄可检出ELISA抗体,10日龄达到峰值。DHV高免血清在雏鸭体内作用维持时间为10d左右。攻毒保护试验表明,攻毒前雏鸭的血清抗体水平与攻毒后雏鸭存活率具直接相关性。 相似文献