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某农户小型种猪场疑似感染伪狂犬病病毒,为了检测出野毒感染猪,净化伪狂犬病,提高猪群健康水平,采用PRV gE抗体ELISA检测试剂盒,对该场免疫了猪伪狂犬病基因缺失疫苗的猪群进行5次野毒感染检测;同时应用实时荧光PCR检测试剂盒,对有临床症状的新生仔猪进行PRV病原检测。经过连续监测、综合防控并适时淘汰,该猪场的PRV野毒感染率降为1.72%,发病仔猪伪狂犬病毒野毒阳性率均降为零。猪场新生仔猪成活率提高,猪群基本无PRV感染,净化效果良好。 相似文献
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基因缺失鉴别ELISA试验在种猪场控制与净化猪伪狂犬病的应用 总被引:1,自引:0,他引:1
猪伪狂犬病是由伪狂犬病毒(PRV)引起的一种急性、高度接触性传染病,以发热、奇痒及脑脊髓炎为主要症状。该病毒可引起各种家畜及野生动物发病,猪是该病原的传播者和自然宿主,临床表现为母猪流产、死产、产弱仔猪等繁殖障碍症状,新生仔猪发热、出现神经症状、死亡率较高。近年来,随着猪伪狂犬病疫苗特别是基因缺失疫苗的使用,猪伪狂犬病的发病率与死亡率大大减少,但目前该病仍然是威胁广西壮族自治区养猪业发展的重要疫病。2005~2006年我们应用gpI基因缺失鉴别ELISA试验对广西4个种猪场进行了猪伪狂犬病的检测,并清除带毒猪,做了控制与净化猪伪狂犬病的试验,达到了预期的净化效果。现报告如下。 相似文献
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《中国畜牧兽医文摘》2012,(5)
<正>猪伪狂犬病是由疱疹病毒科伪狂犬病病毒(PRV)引起的多种畜禽及野生动物发生的一种高度接触性传染病。猪是伪狂犬病病毒的天然宿主,感染后可导致种猪繁殖障碍,仔猪发生腹泻、生长发育受阻、神经症状等,同时伪狂犬病病毒也是引起猪呼吸道病综合征的重要原发性病原之一[1]。且隐性感染猪和康复猪 相似文献
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猪伪狂犬病(PR)临床上以仔猪的神经症状、呼吸道系统疾病及种猪发生流产等繁殖性障碍为特征,猪伪狂犬病病毒(PRV)是引起PR的病原。猪呼吸道疾病综合征(PRDC)是由多种致病因素导致的一种猪复杂的呼吸道疾病,PRV也是引起PRDC的主要病毒性病原之一。近年来规模化猪场对PRV的免疫均选用了基因缺失苗,使用基因缺失苗能更好地利用针对特异性蛋白的Elisa检测方法,将缺失苗免疫动物与野毒感染动物或常规疫苗免疫动物区分开。2010年10月,我们对涪陵区19个使用过猪伪狂犬病gE缺失苗的规模化猪场进行了PRV病原抗体和疫苗抗体的监测。 相似文献
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伪狂犬病(Pseudorabies.PR)是由伪狂犬病病毒(PRV)引起的猪、牛、羊等多种家畜及野生动物的一种主要的急性传染病。病原属疱疹病毒科A亚科猪疱疹病毒。伪狂犬病(简称PR)是典型的自然疫源性疫病。其宿主广泛,猪是该病的主要突主和传染来源。他引起妊娠母猪发生流产、死胎、木乃伊胎和新生仔猪大批死亡,耐过的猪也成为僵猪,是引起猪繁殖障碍的主要疫病之一。 相似文献
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为了解某集约化猪场伪狂犬病病毒(PRV)的感染情况,清除感染猪只,净化伪狂犬病,提高猪群的健康水平.采用PRV gE抗体ELISA检测试剂盒,对该场免疫了猪伪狂犬病基因缺失疫苗的猪群进行3次野毒感染检测;应用荧光PCR方法,对临床发病的仔猪进行PRV病原检测.经过动态监测、加强综合防控和逐步淘汰措施,该猪场的PRV野毒感染率从35.29%逐步降低至0%,猪场自繁的仔猪存活率高,无PRV感染,净化效果良好. 相似文献
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猪伪狂犬病是由伪狂犬病毒(Pseudorabies virus, PRV)引起的一种畜禽传染病。临床症状以哺乳仔猪死亡率高、母猪繁殖障碍、育肥猪迟缓生长为主要特征。该病毒具有很强的传播性可引起猪群传染,严重影响猪的生长发育,对养殖业造成经济损失,对人类健康产生潜在威胁。因此,养殖生产中预防和控制该病毒是非常重要的。本文通过介绍发病机理、临床症状、防控措施,以期为规模化猪场监测防控PRV提供了良好参考。 相似文献
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Beran GW 《Preventive veterinary medicine》2008,86(3-4):198-207
When early people made their appearance, zoonotic infectious diseases were already waiting, but epidemic diseases did not appear in human history until people began to live in large numbers under conditions of close contact, mainly during the last 10,000 years. Disease has decimated urban populations, conquered armies, and disrupted society. The focus here is on (1) the plague of Athens and the Black Death; (2) smallpox, influenza, and rabies; (3) avian influenza prion diseases, and foot & mouth disease; and (4) emerging and re-emerging diseases. All have veterinary public health associations. In Athens, Greece, in 430 BC, when the Spartans ravaged the countryside, hordes crowded into Athens so that orderly movements, space in which to live, and adequate supplies of food became impossible. Crowding of any population fosters disease transmission; chaos and disorder enhance it all the more. Out of northern Egypt came a terrible plague from across the Mediterranean Sea. The identity of the plague of Athens remains unsure, but the well-considered conclusion is Rift Valley Fever, a mosquito borne, viral zoonosis. The Black Death, also called the Plague, raged in Asia for centuries. In 1347, the Black Death was brought by a ship out of Asia to Sicily. The scenes of devastation were repeated throughout Europe, with 90% or more of the people dying in city after city. Influenza, too, has been a cause of periodic human epidemics, but the great pandemic of influenza occurred in the last months of World War I. In the years of highest occurrence, more than half the world's population became clinically infected. If veterinary public health had been born earlier, it could have led to elucidating the epidemiology of influenza and the plagues of Athens, Europe, and Asia. In turn, smallpox had also caused continual tragedy. In 1796, Edward Jenner began to harvest pustules of cowpox from children or infected cows and inject them into susceptible children. In 1980, the World Health Organization declared that smallpox had been eliminated from the world. Rabies, though, still strikes terror. A number of animal diseases, broadly termed emerging and re-emerging diseases, need surveillance because they have the potential to impact human health. From late in 2003 to 2007, the highly pathogenic H5N1 influenza virus in poultry infected at least 121 people and caused 62 deaths in four countries. The prion diseases, too, all have very high numbers in concentrated contacts. To control these diseases, veterinary public health is essential, with diagnosis, epidemiological surveillance, clinical manifestations, and prevention as primary measures. 相似文献
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Dekker A Dercksen D Snoep J van Wuyjckhuise L 《Tijdschrift voor diergeneeskunde》2007,132(18):695-701
On 26th of july 2007 a new case of bluetongue was notified in the Netherlands and on 2nd of august 2007 foot-and-mouth disease was diagnosed in Surrey, England, which raised the threat of having both infections simultaniously in one area. Bluetongue and foot-and-mouth disease have a different pathogenesis, but symptoms may resemble each other at a later stage of infection. The pathogenesis and possible clinical symptoms of both infections are discussed and illustrated with pictures. 相似文献
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在动物的异常行为中以刻板行为最为常见,而咽气癖又是马最常见的口部刻板行为之一。作者就咽气癖在生理方面和心智方面对马体产生的影响、行为基础、诱因的研究进展及常见的防治措施进行综述。 相似文献
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