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青海省规模化猪场仔猪水肿病病原的分离鉴定 总被引:1,自引:1,他引:0
从青海省西宁及海东各县养猪场送检及搜集的发生典型仔猪水肿病的死亡猪肝脏和肠系膜淋巴结,分离鉴定出48株溶血性大肠杆菌,用25种大肠杆菌O抗原单价血清进行了血清学鉴定。结果表明:48株分离菌有32株能定型,分属6种血清型,其中以O8(11/32)、O139(8/32)、O149(6/32)、O141(5/32)4种为优势血清型。同一猪场存在多种血清型,大多数猪场有本场的优势血清型;同一地区的不同猪场流行的主要血清型一般不同;不同地区猪场的优势血清型有的相同,有的不同。 相似文献
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规模化猪场仔猪源大肠杆菌血清型调查及耐药性检测 总被引:1,自引:0,他引:1
《畜牧与兽医》2016,(3):27-32
从第六师五家渠市7个地区规模化猪场疑似仔猪腹泻病例中采集了361份病料,分离并鉴定其中335份病料的病原为大肠杆菌。采用26种主要大肠杆菌O抗原进行血清型鉴定,结果 258株大肠杆菌可定型,分属17种血清型,其中O14、O65、O157、O24、O138为优势血清型。药敏试验结果显示,分离株对四环素等13种抗菌药的耐药率从14.93%~-97.01%不等,多重耐药从耐2到耐13。研究表明,不同地区猪场分离菌株血清型有所不同,同一地区猪场可存在多个血清型,不同地区可流行同一种优势血清型,分离株表现出不同程度的耐药性,且呈多重耐药。 相似文献
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大肠杆菌病是猪的重要细菌性疫病,它的发生形式为仔猪黄痢、仔猪白痢和仔猪水肿病三种形式。为了调查锦州地区猪大肠杆菌病的流行情况,从锦州地区的6个区县发病猪场采集36份疑似猪大肠杆菌病病料进行细菌的分离和生化鉴定,分离到致病性大肠杆菌30株。应用微量平板凝集试验,对分离的30株致病菌进行了血清型鉴定,鉴定出30株共有8种血清型O2、O5、O8、O60、O101、O138、O139、O141。致病性大肠杆菌菌株占疑似猪大肠杆菌病菌株的83.3%。该调查研究针对锦州地区防治猪大肠杆菌病菌苗和筛选防治猪大肠杆菌病敏感药物提供了依据。 相似文献
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黑龙江省规模化养猪场大肠杆菌病血清型流行病学调查 总被引:12,自引:0,他引:12
2000年以来,对全省规模化养猪场发生的7次猪大肠杆菌病进行了临床、病理学和实验室诊断调查。其中仔猪黄痢5次,仔猪白痢2次;总发病猪4740头,病死843头,发病率为39.78%,病死率为17.78%。对采自上述猪场分离获得的77株大肠杆菌,采用大肠杆菌标准抗O型血清凝集试验进行血清型鉴定。其中,仔猪黄痢病料分离菌株血清型分别为O8,O3,O60,O64,O115,O149,O157;仔猪白痢病料分离菌株血清型分别为O8,O9,O139,O157。 相似文献
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广东地区动物源性大肠杆菌的分离及药敏分析 总被引:1,自引:0,他引:1
由广东多个地区猪及禽类养殖场采集疑似大肠杆菌病病料,分离出猪源及禽源大肠杆菌共71株。血清型鉴定实验确定52株的血清型,其中猪源大肠杆菌28株,优势血清型为O101及O157,这两种血清型分别占25%与17.9%;禽源大肠杆菌24株,优势血清型为O119,占62.4%。选用10种抗生素试纸进行药敏试验(庆大霉素、复方新诺明、氟哌酸、红霉素、羧苄青霉素、头孢氨苄、青霉素G、氯霉素、氨苄青霉素、丁胺卡那霉素),结果表明实验菌株耐药性程度较高。 相似文献
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大肠杆菌病是猪的重要细菌性疫病,它的发生形式为仔猪黄痢、仔猪白痢和仔猪水肿病三种形式。为了调查锦州地区猪大肠杆菌病的流行情况,从锦州地区的6个区县发病猪场采集36份疑似猪大肠杆菌病病料进行细菌的分离和生化鉴定,分离到致病性大肠杆菌30株。应用微量平板凝集试验,对分离的30株致病菌进行了血清型鉴定,鉴定出30株共有8种血清型O2、O5、O8、O60、O101、O138、O139、O141。致病性大肠杆菌菌株占疑似猪大肠杆菌病菌株的83.3%。该调查研究针对锦州地区防治猪大肠杆菌病菌苗和筛选防治猪大肠杆菌病敏感药物提供了依据。 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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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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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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在归纳总结RFLP和PCR-RFLP标记技术的原理、优缺点的基础上,系统论述了其在牦牛遗传育种研究中的应用现状,并提出了个人的建议和看法。 相似文献
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近几年,世界饲用添加剂市场增长较快,预计今后将进一步增长,据世界粮农组织(FAO)首领会议的倡议,到2015年,将使世界营养不良的人口削减一半,其间,肉制品将会以每年2%的速度增长,特别是加快猪肉和禽肉增长。这将促进世界添加剂,尤其是蛋氨酸和赖氨酸需求量的增加。 相似文献