W93株疫苗预防鸡肾型传染性支气管炎免疫效果观察

鸡传染性支气管炎（IB）是由传染性支气管炎病毒（IBV）引起鸡的一种急性、高度接触传染病毒性传染病。临床上依据发病特点和病理特征,分为呼吸道型、肾型和腺胃型三种病型,其中肾型传支是鸡传染性支气管炎中死亡率最高的一种病型。     

鸡传染性支气管炎的诊断与治疗

鸡传染性支气管炎是由冠状病毒科传染性支气管炎病毒（IBV）引起鸡的一种急性高度接触性呼吸道传染病。根据不同病毒株感染后侵害主要脏器的差异,常分为呼吸型、肾型、腺胃型、生殖型传染性支气管炎。鸡是传染性支气管炎病毒的唯一宿主,各种日龄的鸡均易感[1-2]。     

应用荧光PCR诊断鸡腺胃型传染性支气管炎

应用荧光PCR试剂盒对临床表现为消瘦和腺胃肿大为特征的患鸡病料进行鸡传染性支气管炎病毒(IBV)、禽网状内皮组织增殖病病毒(REV)和鸡马立克氏病病毒(MDV)核酸检测。结果显示:鸡传染性支气管炎病毒荧光RT-PCR检测为阳性,禽网状内皮组织增殖病病毒荧光RT-PCR检测为阴性,鸡马立克氏病病毒荧光PCR检测为阴性。结合患鸡精神沉郁,极度消瘦,腺胃肿大如球状等的临床表现,综合分析表明该患鸡发病主要病因为感染鸡腺胃型传染性支气管炎病毒。     

鸡传染性支气管炎的综合防治

传染性支气管炎由冠状病毒科的鸡传染性支气管炎病毒（IBV）引起的鸡的一种急性、高度接触传染性的呼吸道疾病,因毒株不同,又分为呼吸型、肾型、腺胃型、生殖型、肠型、混合型,是对养鸡业威胁最为严重的传染病之一。     

商丘市鸡腺胃性传染性支气管炎发病初报

鸡传染性支气管炎 (IB)是由传染性支气管炎病毒引起的一种急性、高度接触性呼吸道传染病。各种日龄、各种品种鸡均可发生。 　　传染性支气管炎病毒 (IBV)属冠状病毒科、冠状病毒属。 IBV的血清型很多，迄今为止已分离出 20多个血清型和更多的变异株，随着疫苗的使用，新的血清型不断出现， IBV对鸡的致病性也发生变化。根据临床症状和病理变化，将 IB分为 5个类型： (1)呼吸型； (2)肾型； (3)肠型； (4)生殖道型或产蛋异常型； (5)腺胃型。 　　1997年王玉东报道引起腺胃型病变的 IBV变异株。 1995年以来，在江苏、山东、山西、广…     

腺胃病变型鸡传染性支气管炎病毒强毒株的培育

用腺胃病变形鸡传染性支气管炎病毒分离株IBV－D971株接种1日龄SPF鸡，连续传10年代，培育出了腺胃病变型鸡传染性支气管炎强毒株IBV－D971J株。IBV－D971J10对SPF鸡胚的致病力为10^-6.45ELD50/0.2mL,对1日龄SPF鸡的致病力为10^-1.5LD50/1mL，从死亡鸡的心，肝，脾，肺，肾，腺胃，肌胃，法氏囊等均能分离到IBV，IBV－D971J10不含鸡新城疫，禽流感，鸡马立克氏病，鸡传染性法氏囊炎，网状内皮组绢增殖病等外源病毒，对SPF鸡可引起典型的腺胃炎，肌胃炎，间质性肾炎等是变化。     

鸡传染性支气管炎诊断技术和疫苗研究进展

鸡传染性支气管炎（Avian Infectious bronchitis,IB）是由传染性支气管炎病毒（Avian Infectious bronchitis virus,IBV）引起的鸡的一种急性高度接触性呼吸道疾病,主要以张口呼吸、咳嗽、气管罗音、腺胃肿大、出血、“花斑肾”为主要特征。自1931年Schalk等首次报道了经典的呼吸型禽传染性支气管炎（IB）并确定为病毒性疾病以来,已有肠型、腺胃型、肾型等多种病型相继报道。     

育成蛋鸡腺胃型传染性支气管炎的诊治

鸡传染性支气管炎（IB）是由传染性支气管炎病毒（IBV）引起的鸡的一种急性、高度接触性传染病。临床可分为呼吸型、肾型、肠型、腺胃型等多种类型。该病一年四季均可发生,尤以秋季多发,且传播速度快。主要发生于肉用蛋雏鸡和育成鸡,发病率可达50％以上,死亡率约为5％-20％不等,给养殖户造成一定的经济损失。现将一起育成蛋鸡腺胃型传染性支气管炎的诊治体会介绍如下。     

鸡传染性支气管炎多价耐热活疫苗(SPF)

鸡传染性支气管炎(IB)是由鸡传染性支气管炎病毒(IBV)引起的一种急性、高度接触性呼吸道疾病,是危害我国养禽业较为严重的病毒性传染病之一,通过多年来采取综合防制措施已基本控制了该病的爆发,但近年来,肾型、腺胃型等IB的出现为本病的防制造成了较大的困难,该病的高度传染性及IBV的多种血清型使免疫预防复杂化和预防     

鸡传染性病毒性腺胃炎的诊断与防治

鸡传染性病毒性腺胃炎(WP)是由一种冠状病毒引起的鸡传染性支气管炎的新型传染病,也称为鸡腺胃型传染性支气管炎(腺胃型传支).     

Disease and destiny-mystery and mastery

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.     

马的咽气癖及其防制措施研究进展

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。     

畜禽物种多样性及其保护和利用

文章就我国畜禽物种多样性资源的现状、保护和利用等方面进行阐述,为生态脆弱的喀斯特地区畜牧业可持续发展提供参考。     

德国荷兰畜禽产品质量安全交流与启示

2018年岁末,笔者有幸赴德国和荷兰,就畜产品质量安全控制及检测技术等进行了短期交流,收获颇丰,现具体介绍如下。一、交流情况德国面积35.73万平方千米,人口约8175.2万,是欧盟人口最多的国家,农业发达,机械化程度很高。德国的畜牧业以猪、牛、羊和禽类为主,畜牧业产值占农业生产总值的61%。德国虽然农业比重很小,但却是有机农业运动最早的发起国,也是目前世界上有机农产品生产与消费大国。     

奶牛肢蹄病及其防治

简介常见奶牛肢蹄病种类及其症状,从日粮营养、运动场地面结构、环境卫生、饲养管理、遗传育种、疾病管理等方面简析奶牛肢蹄病的病因,并提出相应的预防措施。     

Foot and mouth disease and bluetongue: differences and similarities

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.     

牛羊焦虫病诊断与防治技术

近几年来,辽宁省牛羊饲养业迅速发展,焦虫病的危害越来越明显,已成为危害牛羊的主要疾病之一。为了提高牛羊焦虫病的防治水平,保证我省牛羊饲养业的健康发展,笔者在参阅文献和同行们诊疗经验的基础上,结合自己的治疗实践,详细阐述了我省牛羊焦虫病近几年的流行特点和诊断防治方法。     

RFLP和PCR-RFLP标记与牦牛遗传育种研究

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。