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猪瘟病主要是由猪舍环境中存在的猪瘟病毒引起的生猪疾病,常见的猪瘟病毒主要属于黄病毒科,猪瘟病的主要特点事发作突然、持续发热、传染性强、致死率高,是威胁养猪业的主要传染病之一.本文主要介绍了我国当前常见的猪瘟病的主要特点及主要症状,并针对性的提出了相关的预防措施,以给广大猪瘟病防治工作这提供参考. 相似文献
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本文主要通过人、机、料、法、环几个方面逐一研究奶牛乳房炎的病因和防控措施."人"主要是人员管理、技能培训、量化指标的追溯上进行管控."机"主要是对设备管理、性能检测、参数设置进行调整."料"主要是药浴液和奶衬的使用."法"主要是绩效管理、流程梳理以及6S点检."环"主要是牛的舒适度. 相似文献
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本文主要介绍了西安市畜禽规模养殖场现状、存在的主要问题、产生问题的主要原因和规模养殖场疫病监管的建议。 相似文献
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奶牛乳房炎受主要气象因素影响的分析 总被引：2，自引：2，他引：0
本研究是通过对安徽淮南地区奶牛临床乳房炎发生与当地主要气象因素关系的分析,探讨奶牛乳房炎的发病率受主要气象因素影响的程度。结果显示出基本结论是:主要气象因素年变化曲线与奶牛乳房炎发病率的年变化曲线线基本吻合。除风速外,主要气象因素对乳房炎症的发生存在显著影响,气温为最主要因素。 相似文献
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异育银鲫的主要特征有：一是食性广,饲养成本低,经济效益高。异育银鲫为杂食性鱼类。幼鱼阶段主要以浮游生物、尤以浮游动物为主要饵料。 相似文献
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本文主要基于工厂底层自动化、信息集成的视角,研究了现象总线技术的主要内涵与其具体特点,主要通过分析工厂自动体系结构与现场总线技术的变化结构,研究了自动化产品的主要变化形势,分析了其制造前景。 相似文献
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本文概要介绍了深圳欢乐谷仿古小火车,说明了车辆组成及其主要技术参数,并对车辆的主要部件和主要系统作了较为详细的分析说明。 相似文献
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Beran GW 《Preventive veterinary medicine》2008,86(3-4):198-207
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. 相似文献
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Dekker A Dercksen D Snoep J van Wuyjckhuise L 《Tijdschrift voor diergeneeskunde》2007,132(18):695-701
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. 相似文献
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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。 相似文献
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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。 相似文献
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