共查询到20条相似文献，搜索用时 62 毫秒
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<正>随着柳河县黄牛繁殖改良进程的不断加快,纯种基础黄牛的不断减少,基础母牛绝大部分是由西门塔尔、夏洛来等优良品种改良的多元高代母牛。改良代次的不断增加,使得基础母牛的黄 相似文献
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汪燕昌 《畜牧兽医科技信息》2010,(5):12-13
<正>我县畜牧兽医科技服务队伍始建于1956年,随着社会经济发展,不断得到发展和壮大,业务范围不断拓展,现已发展成为集农业执法、动物检疫、防疫监督、疫病监测、畜牧业科技推广于一身的综 相似文献
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<正>近几年来,随着养殖业的不断发展,家禽养殖量的不断增加,养殖环境不断恶化,耐药菌株不断出现,鸡大肠杆菌病越来越成为广大养殖户头疼的一类疾病。鸡大肠杆菌病对养鸡业的发展 相似文献
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<正> 我区是个人均四分田、六分地、五亩山的穷山区。过去我们靠700万亩耕地养活了700多万人口。但随着国民经济的不断发展。人口的不断增加,人民生活水平的不断提高和耕地的不断减少,仅仅依靠这700万亩耕地已经不行了,不得不在占 相似文献
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杨芬红 《青海畜牧兽医杂志》2013,43(2):59
随着人们生活水平的不断提高,经济不断增长。城镇居民对绿色食品需求量越来越高。土鸡、土鸡蛋成为人们饭桌上的抢手货。养鸡以农村散养为主,长期以来由于饲养质量差,营养水平跟不上和饲养管理粗放,疾病不断发生,生长速度过缓,以致出现"孵化得多,成活得少;养得多,育成得少;发病得多,出笼得少;死亡得多,效益少"的局面。农村散养户积极性大大降低。近年来,我们在实践中不断探索,总结了提高 相似文献
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<正>目前黑龙江省属普通高校非常重视人才队伍建设工作,充分认识到人才队伍建设在学校发展中的重要作用,并且制定了一系列的政策和措施,充分调动各类人才的创造性和积极性,有力地推动了人才队伍建设工作,使人才队伍不断地壮大、人才结构不断地优化、人才队伍的整体素质不断地提高,开创了黑龙江省属普通高校人才工作的新局面。 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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