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Antimicrobial Prescribing in Dogs and Cats in Australia: Results of the Australasian Infectious Disease Advisory Panel Survey 下载免费PDF全文
L.Y. Hardefeldt S. Holloway D.J. Trott M. Shipstone V.R. Barrs R. Malik M. Burrows S. Armstrong G.F. Browning M. Stevenson 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2017,31(4):1100-1107
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鸡新城疫、传染性支气管炎、传染性法氏囊病三联弱毒疫苗的试制 总被引:1,自引:0,他引:1
用同胚培养的鸡新城疫Lasota株和传染性支气管炎H120(或H52)株以及用鸡胚成纤维细胞增殖的传染性法氏囊弱毒株以适当比例混合为抗原,用蔗糖脱脂乳作保护剂,经真空冷冻干燥制成三联弱毒疫苗。通过三批疫苗室内外各项指标的测试,表明该三联疫苗安全性能可靠,免疫效果确实,使用方法简便。在实验室进行的物理性状检验、无茵检验、支原体检验、剩余水分检验、真空度检查均符合国家标准;用10倍大剂量接种15日龄雏鸡无不良反应;以常规量颈部皮下接种免疫后,7d产生免疫力,免疫后14d抗鸡新城疫、鸡传染性支气管炎、鸡传染性法氏囊病三株强毒攻击的保护率均为,100%。对15日龄雏鸡首免,其免疫期至少为30d,在-25℃保存期为1年。 相似文献
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The acute phase protein serum amyloid A (SAA) has been shown to be a useful inflammatory parameter in the horse, but studies showing SAA responses to specific respiratory disease etiologies are limited. The goal of this study was to evaluate SAA responses in horses with infectious and noninfectious respiratory diseases as well as healthy, control horses. Two hundred seven horses were grouped into the following categories: equine influenza virus (EIV), equine herpesvirus-4 (EHV-4), Streptococcus equi subspecies equi (S. equi ss equi), inflammatory airway disease (IAD), and healthy controls. Serum amyloid A concentrations were determined for all horses on serum using a stall-side lateral flow immunoassay test. Serum amyloid A levels were found to be significantly greater for infectious respiratory diseases (EIV, EHV-4, S. equi ss equi) and horses with IAD when compared to control horses. There was a significant difference between viral and bacterial infections and IAD. Although SAA values from horses with S. equi ss equi were significantly greater when compared to horses with viral infections (EIV/EHV-4), the wide range of SAA values precluded accurate classification of the infectious cases. In conclusion, SAA is more reliably elevated with infections of the respiratory tract rather than noninfectious airway conditions. This can facilitate early detection of respiratory infections, help track disease progression, and aid practitioners in making recommendations about proper biosecurity and isolation of potentially contagious horses. 相似文献
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鸡传染性法氏囊病(IBD)是由鸡传染性法氏囊病病毒(IBDV)引起的雏鸡的一种高度接触性传染病,自1962年报道以来,世界上主要养禽国家和地区均有流行,给养禽业带来严重经济损失。目前,IBD防控的主要方法是采用疫苗接种,使易感雏鸡获得主动或被动免疫保护,因此疫苗的质量对临床上IBD的防控起着至关重要的作用。虽然各国均有较好的商品化疫苗,但随着IBDV毒株的不断变异,商品化疫苗的抗原性与流行毒株不能完全匹配,临床上免疫失败时有发生,因此迫切需要研发与临床流行毒株相匹配的新型疫苗用于IBD的防控。对近期IBD的基因缺失苗、亚单位疫苗、DNA疫苗以及活载体疫苗等新型疫苗的研究进展进行概述,以此为IBD新型疫苗的研究提供参考。 相似文献
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Vector-borne diseases are medically important in humans and animals but were long considered tropical and known to first affect production animals. This is no longer true and we can see today that they are common in domestic animals and that they are also present in temperate countries, especially in Europe. In recent years, an increase in the diagnosis of vector borne diseases among humans and animals has been observed, which may partly due to the development of diagnostic tools. Their study requires exchanges and collaborations between the many actors involved, especially since the epidemiology seems to be constantly evolving. The veterinary practitioner is the first one to notice the emergence of cases and to implement prevention measures. He also acts as a sentinel to alert epidemiologists. Many factors can explain the epidemiological changes, i.e. all human factors, such as the increase in commercial transportation, but also owners traveling with their pet during the holidays, the development of “outdoor” activities, the increase of individual housings with gardens; to these human factors must be added the ignorance of the risks, linked to animals in general and to wildlife in particular; then the environmental changes: forest fragmentation, establishment of parks; the increase of wild mammal populations (deer, carnivores, rodents, etc.); finally, climate changes. Climate change is a reality which may explain the increase of density of arthropod vectors, but also of their hosts, changes in periods of activity and variations in geographical distribution. The authors show the proof of the climate modifications and then explain how it has an impact in Europe on ticks, mosquitoes, sandflies and even fleas. They conclude on the practical consequences for veterinary practitioners, especially with the diagnosis of parasitic diseases or diseases in areas where they usually do not occur. However, not any epidemiological modification should be linked to climate change, since many other factors are involved and often even overriding. 相似文献
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Sweden has a long history of detailed and progressive legislation related to animal welfare for laboratory, farm and companion animals. Previously, these issues have been the responsibility of the Swedish Board of Agriculture (SBA). As a growing proportion of the public opinion and the political establishment felt that the animal welfare related issues were not given proper attention at the SBA, a political decision was recently made to separate animal housing, management and welfare from the SBA and create an independent Animal Welfare Agency. This Agency was formally launched on January 1st 2004. The government has commissioned the Agency to improve animal welfare by evaluating, enforcing and developing legislation. The agency should consider scientific evidence when writing new legislation. Also, the Agency incorporates an external Animal Welfare Council, which, among other things, discusses ethical aspects in relation to existing or proposed legislature. The new Agency must deal with a diversity of public expectations. Animal rights groups have high expectations regarding new and stricter legislation, for example related to fur animals, while some farmers fear that production aspects may be completely lost in discussions about improving welfare standards for farm animals. 相似文献
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从内蒙古地区分离到3株IBDV(分别命名为J、W、H株)并对其进行细胞培养特性、理化特性、形态特性、动物回归试验和血清学鉴定,研究结果表明:适应鸡胚的J、W、H株可迅速适应CEF,继而适应于Vero和RK_(-13)细胞,在RK_(-13)细胞上的感染滴度最高;3个毒株能抵抗氯仿、耐热(60℃1小时)、耐酸(pH2)、对碱(pH12)敏感;负染样品在电镜下看到正六边形,直径约55~65nm,有实心和空心的病毒颗粒;回归鸡后表现典型的临诊症状和特征性病理变化,发病率为80~100%,病死率为26.6~46.6%;法氏囊超薄切片在电镜下观察到法氏囊淋巴细胞浆内呈晶格状排列或包涵体形式存在的病毒颗粒。微量交叉中和试验结果表明:J、W、H株为血清Ⅰ型IBDV的3个不同亚型毒株。 相似文献
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为了研究商品蛋雏鸡传染性法氏囊病疫苗的免疫程序,对MB株活疫苗、G606株活疫苗和B38株活疫苗3株传染性法氏囊病活疫苗进行了疫苗毒力、免疫效果及对新城疫疫苗免疫影响的观察.结果表明,MB株活疫苗毒力最强,G606株活疫苗次之,B38株活疫苗毒力最弱;突破母源抗体能力强弱依次为MB株活疫苗、G606株活疫苗、B38株活疫苗,其中B38株活疫苗产生的抗体滴度最高,MB株活疫苗次之,G606株活疫苗最低;MB株活疫苗可降低新城疫疫苗产生的血凝抑制抗体滴度,G606株活疫苗和B38株活疫苗对此无影响. 相似文献
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应用多重反转录-聚合酶链反应检测鸡新城疫病毒和传染性支气管炎病毒的研究 总被引:18,自引:1,他引:18
本文建立了一种同时检测NDV和IBV二种病原体的多重PCR技术。根据NDV和IBV的基因文库 ,设计了两对分别与NDV和IBV某段基因序列互补的引物 ,用这两对引物对同一样品中NDV和IBVRNA模板进行多重RT_PCR扩增 ,结果均同时得到了两条特异性的大小与实验设计相符的 31 0bp(NDV)和 1 72 0bp(IBV)多重的RT_PCR扩增带 ,而对其他 6种禽病病原的PCR扩增结果均为阴性 ;敏感性测定结果表明 ,该多重RT_PCR技术能同时检出 1 0pg的NDV和 1 0 0pg的IBVRNA模板。 相似文献
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我国养猪业一直面临对抗多种传染病的压力,自2018年我国发生非洲猪瘟以来,国内多地先后出现疫情,导致生猪存栏量明显下降,严重影响了人民生活,对生猪产业造成了巨大的经济损失,目前亟待恢复正常的生猪生产经营秩序。在进行防控非洲猪瘟的同时,也不能忽视其他猪场常见传染病的防控,为此文章对恢复养猪生产过程中,猪场常见传染病的防控提出了一些建议,以便供养殖户和管理者参考。 相似文献
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彭马 《畜牧兽医科学(电子版)》2021,(4):84-85
生猪养殖属于国内畜禽养殖业中的主要项目,生猪养殖良好发展能满足市场发展的需求。近年,国内猪养殖业发展的稳定性并不明显,在猪养殖总量不断增加的条件下,猪传染病的风险也随之提高,导致猪养殖过程伴随一些影响因素,影响猪养殖业稳定发展。因此,猪养殖企业相关工作人员应在充分掌握以上情况的同时,结合猪传染病特点,采取合理的防控对策,力求在根本上防控猪传染病,促进猪养殖业稳定发展。 相似文献
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穴位注射是针刺和药物结合、中医与西医相结合的一种新型疗法.在穴位注射药液,通过针刺及药物对穴位的双重作用来调整机体的机能和改变病理状态,从而达到治疗疾病的目的.在犬病临床上多用于治疗常见病、多发病和少数传染病等多种疾病.该法操作简单,用药量少,疗效显著.论文根据临床实践对穴位注射疗法的作用机理、操作方法和临床相关病例的治疗情况进行了概述. 相似文献
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在Vero细胞上适应且连续传17代的传染性法氏囊病病毒X毒株IBDVX,再经鸡胚成纤维细胞CEF连续传代后,得到了适应CEF细胞生长且毒力相对稳定的的弱毒株(IBDVX-28)。IBDVX-28~IBDVX-43代毒均能在72h~96h内产生明显的细胞病变效应(CPE),半数细胞感染量(TCID50)在10-8.47/0.1mL~10-9.26/0.1mL之间,半数鸡胚感染量(EID50)在10-4.71/0.2mL~10-5.80/0.2mL之间。致病性试验表明,各代次毒能引起10日龄鸡胚40%~50%的感染或死亡,对30日龄SPF小鸡基本无致病性,所有试验鸡均未见法氏囊明显的眼观病变,囊指数(b/B)平均为0.35±0.040;IBDVX-28代毒在雏鸡体内回归6代,均未见法氏囊明显的眼观病变,囊指数保持稳定。 相似文献