鸡新城疫与禽流感诊断与防制

鸡新城疫、禽流感都是由病毒引起的具有高度传染性的疾病,一年四季均可发病,且都以冬春两季多发,下面就其鉴别诊断介绍如下:1易感动物1.1新城疫是由副粘病毒引起,易感动物是鸡和野禽。1.2禽流感是由A型流感病毒引起的具有快速流行、持续时间长等特点,它对禽类都有一定的互感性,     

鸡新城疫与鸡禽流感的鉴别诊断及防治措施分析

<正>近年来,禽流感在世界范围内的流行日趋严重,对禽肉、禽蛋在国际间的贸易造成了严重影响。鸡禽流感与鸡新城疫均由病毒感染引起,冬春两季高发,具高度传染性,因二者在症状上形似,故感染新城疫的鸡群易被养殖户误认为鸡禽流感,导致处理措施选择不当,进而延误了病情。重视鸡禽流感与鸡新城疫的鉴别诊断,并制定针对性防治方案,对保障养殖业的健康发展意义重大。1易感动物鉴别1.1鸡新城疫本病由感染副粘病毒所致,鸡为易感动物,     

生态放养土鸡谨防马立克病

正马立克病(MD)是由疱疹病毒引起的鸡的一种最常见的淋巴组织增生性肿瘤病,是生态放养土鸡需要特别注意防控的重要疾病之一。1流行特点1.1易感动物本病的易感动物只有禽类,主要是鸡、火鸡、山鸡和鹌鹑等,其他禽类品种少见。     

禽流感的流行分析与预防控制

禽流感又称为欧洲鸡瘟或真性鸡瘟，它是一种禽类传染性疾病，多由A型流感病毒所引起。该传染性疾病不仅会造成巨大的经济损失，还会对人及易感动物的健康和生命安全造成严重威胁。本文从发病季节、传播途径、易感动物、发病率及死亡率等几个方面分析了禽流感的流行特点，然后就如何预防和控制禽流感提出了相应的措施，以供参考。     

蛋鸡重要传染病的诊断和防治

正鸡新城疫是由新城疫病毒引起的一种急性、高度接触性传染病;禽流感是由A型禽流感病毒引起的禽类的高度接触性传染病;传染性喉气管炎是由传染性喉气管炎病毒引起的一种急性、高度接触性的上呼吸道传染病;传染性支气管炎由鸡传染性支气管炎病毒引起的一种急性、高度接触性的呼吸道和泌尿生殖系统传染病。以上四类疫病在蛋鸡场常发且后果严重。1鸡新城疫1.1症状和病理病鸡精神沉郁,羽毛松乱,闭眼,垂头,缩颈,昏睡,排黄     

鸡瘟、亚洲鸡瘟、欧洲鸡瘟、真性鸡瘟是怎么一回事?我国民间俗称鸡瘟 学名为鸡新城疫

鸡新城疫在我国民间俗称“鸡瘟”，也称“亚洲鸡瘟”。这与欧洲国家所称的“鸡瘟”不同，欧洲国家的鸡瘟是一种禽流感疾病，也称“真性鸡瘟”。 鸡新城疫是一种因病毒引起的急性传染病。病毒主要分布在脑、脾、肺、骨髓、体液中，病毒在鸡体内能迅速繁殖。各种年龄的鸡都可以感染上鸡新城疫，幼雏鸡感染性最高。 鸡新城疫也存在于其他鸟禽类．如鸭、天鹅、塘鹅、野鸡、燕八哥、麻雀、鹌鹑、老鹰、乌鸦、孔雀、鸽子等。这些鸟禽类发病后，能将病毒传染给鸡，从而引起鸡的新城疫大流行。新城疫流行可以造成９０％的鸡死亡。自然感染潜伏期３－…     

鸡新城疫的诊治

<正>鸡新城疫在我国俗称鸡瘟,是由新城疫病毒引起的一种高度接触性传染病。鸡新城疫病毒存在于病鸡的所有组织和器官内,血液及分泌物中,以脑、肺、脾含毒量最多,骨髓里病毒维持时间最长,抵抗力较强。其易感动物包括鸡、鸽子、火鸡、珍珠鸡等     

鸡禽流感鉴别诊断技巧及防治措施

鸡禽流感是一种发病突然、易感动物广泛、致病性强、流行范围广的病毒性疾病,其中高致病性禽流感一旦暴发,不仅会危害禽类养殖,还对人类健康存在较大威胁,是我国一类动物疫病。本文首先对鸡禽流感病毒的病原特征和流行病学进行概述,由于禽流感发病时和部分传染病具有相同的发病症状,由于鸡禽流感与新城疫、减蛋综合征、传染性支气管炎、慢性呼吸道疾病具有相似之处,本文对其鉴别方法进行分别探讨,最后提出鸡禽流感免疫程序和相关疫病控制管理,供同行交流参考。     

禽流感的流行分析与预防控制

<正>禽流感是一种常见的禽类传染性疾病,主要由A型流感病毒引起,此病会威胁人类和易感动物的健康和生命安全,并给家禽养殖业带来巨大经济损失,严重影响养殖业的健康发展,因此饲养人员必须结合养殖业发展实际情况,了解禽流感流行特征,进而制定科学有效的预防控制方案。1流行特点多种禽类均有感染禽流感的可能性,其中以     

鸡粪处理与禽流感的预防

禽流感是禽类的病毒性流行性感冒,又称真性鸡瘟,是由流感病毒引起禽类的一种从呼吸系统到全身败血症等多种症状的传染病,禽类感染后死亡率很高.世界卫生组织指出:粪便是禽流感传播的主要渠道.病鸡粪便中的H5N1禽流感毒株会在空气中传播,并被风带走,因此对鸡粪的合理处理对于预防禽流感的发生与传播非常重要.鸡粪处理的主要方法有以下几种:     

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.     

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.     

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。     

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。     

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。     

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。     

国内外蛋氨酸与赖氨酸市场分析与展望

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。     

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。