胞壁酰二肽复合物在养猪生产中的应用

<正>1当前猪病特点1.1传染病的流行强度和毒力有所变;1.2传染病的传播途径增多和季节性不显;1.3传染病的病原变异和型别增多;1.4多病原混合感染;1.5多重耐药和超级耐药菌株出现;1.6新病不断出现;     

鸡场疫病防制策略与药物选择使用

根据规模化养鸡场鸡只发病率死亡率高、鸡病种类多、防治难度增大、呼吸系统疾病发生呈上升趋势、免疫抑制性疾病增多、混合感染不断出现、多病联发或并发增多、发病非典型化和病原出现新的变化等现状及流行特点．如何科学制定鸡场疫病防制对策与药物选用原则．而有效控制病毒性疾病．最大限度地减少细菌性疾病造成的损失．     

新形势下如何做好动物疫病监测和防控

在新的形势下,动物疫病发生了各种新的变化,主要表现为免疫抑制病增多,畜禽多病原性复合病增多,隐性病增多,新的疫病增多,疫病传播和感染的机会越来越多等各个方面。本文就如何做好动物疫病监测和防控提出建议。     

瓜元散治疗奶牛乳房炎

乳房炎是因病原微生物感染或因外界刺激引起的各种家畜乳房病症,其中奶牛多发。特点是乳房发生炎症并出现不同程度的肿胀,乳中体细胞尤其是白细胞增多,以及乳腺组织发生病理变化,     

浅谈鸡鼻气管鸟疫杆菌病

<正>近几年来,常见病仍在继续流行,而且不断地发生新的变化,其特点是死亡率高、病原出现变异,危害仍以病毒性疾病最大,同时条件性疾病的危害也越来越严重;单发型的疾病逐渐减少,而混合感染较多。同时,新的疾病在养     

猪场免疫预防实施程序

目前我国猪病的种类越来越多,包括病毒病、细菌病和寄生虫病等;病原发生变异,呈现多样性,并出现了新毒株和新病毒,如猪博卡病毒、杯状病毒及猪输血传播病毒等的感染;滥用抗生素引发细菌耐药性增加;种猪群中病原的隐性带毒,持续性感染;免疫抑制因素的广泛存在;霉菌毒素危害的加重及饲养环境的严重污染等,致使疫病发生的危害性与复杂性增加,也增加了防控工作的难度。     

实验室技术在规模化猪场疫病防控中的应用

由于集约化程度的不断提高、流通频繁等原因，疫病的感染压力越来越大。蓝耳病和圆环病毒等免疫抑制性疾病的多发、多病原混合感染、温和型和非典型病变的存在、新病原或新的病原型亚型不断出现、持续感染与潜伏感染时常发生、各种繁殖障碍综合征和呼吸道综合征的出现、一些猪的疫病出现新的流行特点，使得规模化、     

断奶仔猪多系统衰竭综合征的免疫学研究进展

断奶仔猪多系统衰竭综合征(PostweaningMultisystemic Wasting Sydrome,PMWS)是断奶仔猪一种新的传染病,该疾病严重影响猪的生长发育,给养猪业造成巨大的经济损失。猪圆环病毒2型(P'orcine Circovirus 2,PCV2)是PMWS的主要病原,该病毒具有以下几个特点:持续性感染[1],在感染猪的分泌物和排泄物中可检测到PCV2的DNA;该病毒能引起猪群发生原发感染甚至死亡,严重时使机体的免疫功能受到损害,导致机体抵抗力下降,引起并发或继发感染,使病情加重,造成更大的经济损失;经常以亚临床感染的形式出现,易被忽视[2]。     

规模化猪场疫病流行特点及控制策略

<正>1当前规模化猪场疫病流行的特点1.1病原体出现新的变化部分病原发生遗传变异或血清型发生改变,出现新的变异株、血清型或亚型,毒力减弱或增强,病原抗原性的漂移,加上猪     

刍议规模猪场兽医临床诊疗注意事项

<正>改革开放以来,畜牧业生产取得了快速的发展,对"菜篮子工程"建设起了重要作用。然而,在诸多因素的综合作用和影响下,猪病发生与流行呈"新出现和重新流行的传染病,危害性增大;多病原混合感染,病情更加复杂化;病症非典型化,隐性感染增多;     

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.     

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。     

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。     

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。     

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.     

广西芒果主要病虫害及其防治

广西是我国主要的芒果生产基地。随着基地建设的发展,芒果病虫害已成为目前栽培管理的主要问题。为此,在调查、研究的基础了介绍了当前芒果生产中常见的病虫害,并提出了防治措施,以期为生产上提供技术参考。     

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。