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[目的] 为了调查宁夏固原市肉牛口蹄疫和布鲁氏菌病的流行情况,[方法]通过采集74份不同月龄肉牛血清样本,采用酶联免疫吸附试验(ELISA)对2种疫病抗体进行检测和分析。[结果],抗体阳性率由高到低分别为A型口蹄疫(48.65%)、O型口蹄疫(43.24%)、布鲁氏菌病(12.16%)。混合抗体阳性率中主要以O型和A型口蹄疫混合抗体阳性率最高(58.54%)。O型口蹄疫在西吉县的阳性检出率最高(88.24%),彭阳县最低(6.67%);A型口蹄疫在西吉县阳性检出率最高(82.35%),彭阳县最低(26.67%);布鲁氏菌病在原州区阳性检出率最高(15.00%),泾源县和彭阳县未检出。从不同年龄来看,3种疫病均在＞12月龄的肉牛中阳性率最高,分别为O型口蹄疫69.23%、A型口蹄疫76.92%、布鲁氏菌病15.38%。[结论] 固原市各个县区肉牛养殖地区均出现2种病原感染的情况,以O型和A型口蹄疫混合感染为主。在肉母牛养殖过程中,应加强对以上病原的检疫并采取相应的防控措施。 相似文献
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试验采用口蹄疫O型间接血凝试验和O型口蹄疫抗体液相阻断ELISA 2种试验方法检测了60份血清中猪O型口蹄疫免疫抗体.研究结果显示,60份被检血清口蹄疫O型间接血凝试验检测合格率为93.3％,O型口蹄疫抗体液相阻断ELISA试验检测的合格率为73.3％,口蹄疫O型间接血凝试验检测合格率明显高于O型口蹄疫抗体液相阻断ELISA试验检测的合格率（相差20个百分点）;2种方法的总符合率为66.7％、＜25（＜2^6）的符合率为28.6％,≥2^5（≥2^6）的符合率为82.1％.2种方法检测出的整体免疫效果较好,平均合格率远高于农业部规定的70％. 相似文献
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This review deals with the role of viruses in the aetiology of bovine mastitis. Bovine herpesvirus 1, bovine herpesvirus 4, foot-and-mouth disease virus, and parainfluenza 3 virus have been isolated from milk from cows with clinical mastitis. Intramammary inoculations of bovine herpesvirus 1 or parainfluenza 3 virus-induced clinical mastitis, while an intramammary inoculation of foot-and-mouth disease virus resulted in necrosis of the mammary gland. Subclinical mastitis has been induced after a simultaneous intramammary and intranasal inoculation of lactating cows with bovine herpesvirus 4. Bovine leukaemia virus has been detected in mammary tissue of cows with subclinical mastitis, but whether this virus was able to induce bovine mastitis has not been reported. Bovine herpesvirus 2, vaccinia, cowpox, pseudocowpox, vesicular stomatitis, foot-and-mouth disease viruses, and bovine papillomaviruses can play an indirect role in the aetiology of bovine mastitis. These viruses can induce teat lesions, for instance in the ductus papillaris, which result in a reduction of the natural defence mechanisms of the udder and indirectly in bovine mastitis due to bacterial pathogens. Bovine herpesvirus 1, bovine viral diarrhoea virus, bovine immunodeficiency virus, and bovine leukaemia virus infections may play an indirect role in bovine mastitis, due to their immunosuppressive properties. But, more research is warranted to underline their indirect role in bovine mastitis. We conclude that viral infections can play a direct or indirect role in the aetiology of bovine mastitis; therefore, their importance in the aetiology of bovine mastitis and their economical impact needs further attention. 相似文献
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In Malaysia, where vaccination campaigns against foot-and-mouth disease and haemorrhagic septicaemia are routinely carried out, it was desirable to determine whether it was safe and efficacious to administer both vaccines simultaneously. A trial group of 104 cattle was divided into three groups; group 1 animals received both vaccines simultaneously, group 2 animals received only foot-and-mouth disease vaccine and group 3 animals received only haemorrhagic septicaemia vaccine. The serological response to vaccinations was monitored at 0, 21 and 35 days by the virus neutralisation test for foot-and-mouth disease and the mouse-protection and indirect haemagglutination tests for haemorrhagic septicaemia. The simultaneous administration of the two inactivated vaccines produced no adverse effects and the serological response did not differ from the response to either vaccine given separately, thus indicating that cattle may be safely and effectively vaccinated simultaneously in this way. 相似文献
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余金霞 《畜牧兽医科学(电子版)》2021,(4):17-18
牛口蹄疫是传染性疾病,为研究青海省峰堆乡口蹄疫疫苗的免疫效果,于2018—2019年对该乡的7个村开展牛口蹄疫疫苗免疫效果调查,共调查牛634头,7个村总体的口蹄疫合格率为100.00%和97.56%,最低合格率为81.63%和88.63%。为更好地控制该类疾病发生流行,提升免疫效果,该文探讨口蹄疫疫苗免疫失败原因,并制定了相应的预防措施。 相似文献
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水疱性口炎分为印第安那型 ( Indiana)和新泽西型 ( New Jersey)。这两种血清型病毒的快速和可靠的鉴别对该病的诊断、检疫、分子流行病学调查和监测至关重要。文章按照 VSV核蛋白基因序列 ,设计了一对两型通用引物和两型各自特异性探针。研究建立了 VSV实时荧光定量 PCR检测方法 ,对 VSV细胞培养物、人工感染实验动物组织、血清样品 ,以及系列稀释的不同 TCID50 样品、其它相关或相似病毒进行鉴定 ,同时与常规 PCR、病毒分离试验作了比较。Taq Man○R RT-PCR的特异性和敏感性相当于或优于对照方法。重复性和稳定性试验证实 ,该方法可靠。每个试验中设立阳性、阴性对照和标准稀释度对照 ,使试验结果可对病毒 RNA作准确定量 ,并可在 4h内获得结果。研究结果表明 ,Taq Man○R RT-PCR方法是一种特异性强、敏感性高、快速安全的定量检测方法。因此 ,可以作为 VSV的快速检测和定型。 相似文献
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为掌握伊吾县牛羊口蹄疫免疫抗体水平,采用液相阻断ELISA抗体检测(LPB-ELISA)方法,收集6个乡镇2019—2021年抽检春秋两季牛1258头、羊2496只,进行时间、地域分布描述。实验显示,口蹄疫A型总体合格率90.86%、90.91%,O型口蹄疫免疫抗体总体合格率94.12%、94.03%,免疫抗体效价大于70%。不同区域前山乡口蹄疫整体免疫水平最高,吐葫芦乡牛A型口蹄疫免疫抗体较低仅为74.67%。结果表明,全县牛羊口蹄疫免疫抗体检测效果整体良好,部分乡镇免疫较低。需做好基层牛羊口蹄疫免疫调研,查找原因,提出了今后的工作方向,加强对防疫员开展从疫苗保存、免疫部位选择、免疫剂量技术指导,特别是动物检疫站监管,为伊吾县畜牧业高质量健康发展提供依据。 相似文献
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LI Xia-ying ZHENG Lu-fei ZHANG Xiu-jie YANG Kun WANG Qi-huai ZHOU Rong WU Tian-wen 《中国畜牧兽医》2015,42(7):1910-1916
Foot-and-mouth disease (FMD) is an acute,febrile and highly contagious animal disease caused by foot-and-mouth disease virus (FMDV),and has been recognized as the most important constraint to international trade in animals and animal products.An outstanding feature for FMDV infection is that the FMDV infected animals may remain as a carrier state,some of the animals exposed to FMDV may have a long term asymptomatic infection.This article will review the advance of FMDV in the following aspects,epidemiology,etiology and pathogenesis. 相似文献
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Griot C Vandevelde M Schobesberger M Zurbriggen A 《Animal health research reviews / Conference of Research Workers in Animal Diseases》2003,4(1):1-10
Paramyxoviruses are responsible for a wide variety of diseases both in humans and in animals. Common to many paramyxoviruses is the fact that they can cause neurological symptoms in their final host. Newly discovered paramyxoviruses, such as the Hendra and Nipah viruses, show the same pattern of pathogenesis as that of the paramyxoviruses already known. Canine distemper virus (CDV) is a well-studied member of the genus Morbillivirus. Study of the neuropathogenesis of CDV might give insight into disease mechanisms and suggest approaches for the prevention of other recently discovered paramyxovirus infections. 相似文献
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Interferon inducers and foot-and-mouth disease vaccines: influence of two synthetic polynucleotides on antibody response and immunity in guinea pigs and swine. 
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下载免费PDF全文 Polyriboadenylic-polybouridylic acid enhanced the immunological response of guinea pigs to aqueous foot-and-mouth disease virus vaccine. Polyriboninosinic-polyribocytidylic acid enhanced the early antibody production of swine to oil emulsified foot-and-mouth disease virus vaccine. Polyriboninosinic-polyribocytidylic acid alone did not stimulate resistance to foot-and-mouth disease in swine. 相似文献
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于合生 《畜牧兽医科学(电子版)》2021,(5):63-64
牛口蹄疫是国家一类重特大传染性疾病,会严重威胁地区牛养殖产业的安全,给养殖户带来巨大经济损失,降低牛养殖产业的生产效益。再加上牛口蹄疫是一种人畜共患病,疾病传播流行中,如果没有做好个体防护很易造成病毒,向人扩散蔓延,威胁周边居民的生命财产安全。在充分掌握牛口蹄疫病发生现状的基础上,需要进行认真细致的分析,构建针对性的防控措施,降低疾病发生流行造成的危害。在充分掌握新宾县牛口蹄疫发生现状的基础上,对牛口蹄疫疾病的诊断和提出防治措施。 相似文献
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口蹄疫是由口蹄疫病毒引起的偶蹄动物的一种急性、热性、高度接触性一类传染病,具有发病急、蔓延快、传播广、危害大等特点。我国对本病采取了100%注射疫苗强制免疫的措施,有效地控制了本病的发生及蔓延。然而在注苗免疫过程中,因个体差异等原因,个别家畜往往出现不同程度的过敏反应,有时因救治不及时或治疗方法不当造成死亡,给养殖户带来一定的经济损失,也影响了防疫工作的有效推进。文章通过一例牛口蹄疫免疫过敏病例的救治,介绍了牛在接种口蹄疫疫苗后可能出现的应激反应,并提出了解救措施,为及时、有效处理口蹄疫疫苗应激反应提供参考。 相似文献
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Windsor MA Carr BV Bankowski B Gibson D Reid E Hamblin P Gubbins S Juleff N Charleston B 《Veterinary research》2011,42(1):108
ABSTRACT: Infection of cattle with foot-and-mouth disease virus (FMDV) results in the development of long-term protective antibody responses. In contrast, inactivated antigen vaccines fail to induce long-term protective immunity. Differences between susceptible species have also been observed during infection with FMDV, with cattle often developing persistent infections whilst pigs develop more severe symptoms and excrete higher levels of virus. This study examined the early immune response to FMDV in na?ve cattle after in-contact challenge. Cattle exposed to FMDV were found to be viraemic and produced neutralising antibody, consistent with previous reports. In contrast to previous studies in pigs these cattle did not develop leucopenia, and the proliferative responses of peripheral blood mononuclear cells to either mitogen or third party antigen were not suppressed. Low levels of type 1 interferon and IL-10 were detected in the circulation. Taken together, these results suggest that there was no generalised immunosuppression during the acute phase of FMDV infection in cattle. 相似文献
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根据GenBank中O型和Asia1型口蹄疫病毒(Foot-and-mouth disease virus,FMDV)的vp3、vp1和2A基因序列,并与其它血清型FMDV的对应基因序列进行比较,设计用于扩增O型和Asia1型FMDV vp1基因的特异性引物,建立O型和Asia1型FMDV RT-PCR鉴别诊断方法。本方法首先用通用型引物进行RT-PCR,确定是否为FMDV感染,然后用特异性引物鉴别O型或Asia1型FMDV的感染。用vp1基因序列分析进行符合性试验,验证了该方法所具有的特异性和敏感性。本方法可用于O型和Asia1型FMD的快速诊断及流行病学调查。 相似文献
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J. Tessler 《Canadian journal of veterinary research》1973,37(3):323-324
A bacterium isolated from vesicular lesions on foot pads of guinea pigs reproduced lesions similar to those seen in experimental infections of guinea pigs with foot-and-mouth disease virus. (FMDV). These bacterial lesions were produced with an inactivated FMDV suspension. Identification as Staphylococcus aureus was determined by growth characteristics on nutrient and blood agar, Gram staining, fermentation of mannitol and coagulase positive reactions. In addition, the organism was sensitive to concentrations of penicillin and streptomycin commonly used in laboratory diluents. 相似文献
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选择不同月龄的弗莱维赫采精种公牛30头,注射口蹄疫疫苗后,观察其对精液次均采集量、平均密度、平均活力、精液废弃率及制冻数量的影响程度并进行对比。结果显示,疫苗注射后,3个月龄的种公牛精液采集量变化与注射前相比差异不显著(P＞0.05);24、32月龄种公牛的精液密度变化也不显著(P＞0.05),仅42月龄种公牛精液密度出现极显著增加(P＜0.01);3个月龄的种公牛精液活力均有不同程度的变化(P＜0.01),但影响期不同,以32月龄种公牛影响期短;疫苗注射后,仅有32月龄种公牛精液废弃率及制冻数量无显著变化(P＞0.05),24、42月龄公牛精液废弃率明显增加(P＜0.01),其精液制冻数量则在注射后期变化明显(P＜0.05)。综上所述,口蹄疫疫苗注射对各月龄种公牛精液品质均有不同程度的影响,以青年公牛最为明显。 相似文献