猪呼吸道疾病的成因及防控措施

<正>1猪的呼吸道疾病的概念猪呼吸道疾病一般称作猪呼吸道疾病综合征(PRDC),是一种多因素引起的呼吸道疾病的总称,它是由病毒、细菌、环境应激     

猪呼吸道疾病综合征的病因及其防控

正猪呼吸道疾病综合症对猪养殖产业造成的影响危害十分严重,已经成为猪养殖产业中疫病防控的最为主要的疾病之一。1 猪呼吸道疾病综合征的病因猪呼吸道疾病发病主要有两点:一种是病原引起,另外一种是发病诱导因素导致的。病原导致猪呼吸道疾病的种类有许多,主要可以总结为两类,第一是原发性感染疾病病原,这类病原导致猪患伪狂犬病、气喘病、呼吸道综合疾病以及繁殖方面的疾病等;另外一类是继发性感染导致猪患病,这类     

论秋冬季节猪呼吸道疾病的防控措施

猪呼吸道疾病作为猪的常见疾病之一,对猪的成长有着极为严重的影响,尤其是猪呼吸道疾病的类型极多,治疗工作极为繁琐,在猪发病时得不到及时、有效的治疗工作,使得猪呼吸道疾病在我国猪的养殖工作中出现极为频繁,严重的危害了猪的正常生长.本来通过讨论猪呼吸道疾病,在秋冬季节中的防控措施,找出可以预防猪呼吸道疾病的有效办法.     

猪呼吸道疾病鉴别与防治

在猪的养殖过程中,呼吸道疾病是猪的多发疾病,猪呼吸道疾病为养殖户带来了很大的麻烦,严重影响猪的规模化养殖。猪的呼吸道疾病一般是由各种病菌或者寄生虫单独或者共同作用所导致的,猪的呼吸道疾病比较复杂,这种疾病的鉴定与防治也有一定难度,笔者就常见的猪呼吸道疾病的鉴定方法和防治措施进行了分析和介绍,希望对于养猪户在鉴定和防治猪呼吸道疾病方面有所帮助。     

养猪场猪呼吸道疾病频发的应对

正猪呼吸道疾病不仅长期以来一直是困扰养猪场的一大顽疾,而且近年来猪呼吸道疾病给养猪场造成的损失也日益显示得越来越突出,分析猪呼吸道疾病在养猪场中频发却得不到彻底根治的主要原因,则重点在于以下四点:一是诱发猪呼吸道疾病的病因复杂,原发性感染疾病、继发性感染疾病以及饲养管理和环境因素等均可诱发猪呼吸道疾病危害,且发病猪多呈混合感染;二是养猪场的管理与环境因素成为了猪呼吸道疾病频发的     

秋冬季节猪呼吸道疾病综合征防控

猪呼吸道疾病综合征（PRDC）是一种由多病因相互作用引起的呼吸道疾病的总称。秋冬季节是生猪存栏高峰季节,也是猪场猪呼吸道疾病综合征容易发生的季节,从母猪、哺乳仔猪、保育猪到育肥猪的各个阶段猪都能感染呼吸道疾病,混合与继发感染是导致猪群高发病率和高死亡率的原因,日龄越小死淘率就越高。     

猪呼吸系统疾病综合分析

秋季是呼吸道疾病的高发季节,猪呼吸道疾病病因复杂,对生猪生产影响较大。疫病的发生和流行常常令养殖场（户）防不胜防,头痛不已。本期就以猪的呼吸道疾病为专题,特约了几位猪场管理和疫病防控方面的专家,谈猪场呼吸道疾病的防控。同时,选登了包括猪喘气病、猪传染性萎缩性鼻炎、猪呼吸系统疾病综合征、猪圆环病毒病、猪流感等有关猪呼吸道疾病防制方面的文章。希望能够给予读者一些启示和帮助。     

猪呼吸道疾病综合征的治疗

<正>猪呼吸道疾病综合征主要表现为气喘、咳喘、发热等病症。猪呼吸道疾病综合征的成因较为复杂,常常伴随着发热感染等,确认治疗难度较大。这种病症不仅影响猪的正常生长,还会导致猪病死率止升问题。应当结合猪呼吸道疾病病因,采用多种有针对性的治疗措施。1猪呼吸道疾病基本原因1.1原发性病因引发猪呼吸道疾病的原因多种多样,其中有很多是原发性病因引起的疾病。原发性病因也是引起猪死亡的重要原因。例如,猪的繁殖与呼吸综合征病毒引起的原发性呼吸道     

猪呼吸道疾病的系统控制

猪呼吸道疾病是多种疾病引起呼吸道症状的总称,大部分时候是多病因引起的,临床也称为猪呼吸道疾病综合征。猪的呼吸道疾病在猪场是常见多发病,对猪场造成危害极大。引起该病的原因比较多,临床上也多存在混合感染情况,诊断和治疗都不容易。另外,很多致病菌(如支原体、猪副嗜血杆菌、链球菌)在猪场长期存在,条件性致病,所以呼吸道疾病在猪场容易     

猪呼吸道疾病综合征发病特点与防控措施

<正>猪呼吸道疾病综合征是呼吸道疾病的总称,防控要从生物安全、减少应激、合理免疫和用药方案四方面全面展开工作。猪呼吸道疾病综合征(PRDC)是由多种致病病原包括各种病毒与细菌,以及环境应激等诸多因素相互作用引起的保育和生长育肥猪群的呼吸道疾病总称。猪呼吸道疾病综合征持续影响猪群健康,导致发病猪群死亡与淘汰率上升,猪群生长效率下降和生产成本升高,给养猪业带来了严重的危害和经济损失。为了更好地解决猪呼吸道疾病综合征给猪场带来的困     

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.     

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。     

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。     

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。     

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。