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2006年美国大陆有惊人数量的蜜蜂群死亡.随后的调查推测,这种不明原因的蜂群消失至少在最近两年是养蜂人经历过的.到2007年春季全美国有20多个州报道了蜜蜂灾难性的损失.蜜蜂飞出去采集花粉和花蜜,却神秘地不再返回蜂巢,目前还查不出原因.这种情况经过媒体的报道,特别是在万维网上迅速的传播(到2007年7月上旬"谷歌"网上已有621 000项关于蜜蜂神秘失踪的报道),引起了世界各国的科学家、养蜂企业和农场主的关怀. 相似文献
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谢银禄 《畜牧兽医科技信息》2008,(3):13
在建设社会主义新农村时期,利用科学技术发展现代畜牧业,提高生产效率,是新时期赋予畜牧兽医工作者的一项重要的历史使命.随着国民经济水平的不断提高,大格勒乡养猪业由传统"养猪为过年"落后的状态,开始面向市场.但转型的养猪业还不具备一定的经济规模和系统科学的饲养管理程序,以及必要的市场流通渠道,极易遭受市场经济规律无情的淘汰.笔者就大格勒乡养猪业通过多年的调查研究,浅析大格勒乡养猪业存在的问题,以供广大的同仁和养猪户借鉴. 相似文献
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随着养禽业的发展,疾病也在不断地变化.为防治各种疾病的发生,投药是不可避免的,但如果投药的方法不当(如剂量过大或用药时间过长),则会引起药物中毒,严重影响鸡的健康和生产性能,甚至造成大批死亡,给养鸡业造成不应有的损失.现就鸡常用药物中毒的原因及其预防措施简述如下. 相似文献
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国家蜂蜜新标准GB18796-2005的实施对治理混乱的蜂蜜市场意义重大,但标准的实施不仅存在着执行的困惑,而且存在着缺陷,主要是没有面对我国养蜂生产和产品加工的实际,没有处理好养蜂生产者、生产经营者和行业长期利益的关系,与国际标准还存在一定差距,是企业标准行业化的垄断。中国已经加入WTO六年,随着世界经济文化的一体化,蜂蜜的标准不仅是中国的,也是世界的。本文就标准存在的缺陷提出一些看法,以期能起到抛砖引玉,促进我国蜂蜜标准更为科学和合理的修订。 相似文献
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七月,火红的季节,勾起人们无限的追忆与遐想。当南湖红船的誓言冲破华夏大地的阴霾,当遵义会议毛泽东思想成为行路的指南,当春天的故事唱响十三亿人民走进新时代的诗篇,当和平崛起的 相似文献
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导读:用禽流感病毒疫苗给家禽进行免疫接种是预防禽流感发生与传播的主要措施.但是,用疫苗进行免疫接种可能不会使病毒的复制和排泄停止,并且对在免疫接种的鸡群中特别是在集约化生产方式的鸡群中可能出现毒力更强的病原体.文章特别指出,当前,用行政手段强行取缔小规模的家禽生产被认为是既不现实也不适宜的. 相似文献
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记:对于一个规模化的猪场来说,贵场今年的养猪效益怎么样? 张:还不错.虽然今年广东地区也属于高致病性猪蓝耳病的暴发区,但对于规模化的猪场来说,受到的影响较小.今年的整体行情很好,根据各规模猪场的情况不同,养猪利润稍有差异,大概每头猪在200～300元,中小户的利润更高些,有许多养猪企业和养猪户是赚了钱的.但对整个行业来说,今年整体赚的钱不会比往年多,因为猪出栏量减少的程度比较严重. 相似文献
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在季节交替的时候,由于气温起伏较大,长期患有高血压、高血脂的老年人极易诱发脑血管病.所以应注意以下几点: 1.患有高血压病、心脏病、短暂性脑缺血、动脉硬化等疾病的人群应引起高度重视,并在医生的指导下进行正规的、长期的治疗和观察,同时服用蜂产品制剂. 相似文献
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鉴别现有PRRS(猪繁殖与呼吸综合征)病毒基因 型的工作是瑞典2007年流行病研究的重要内容.在德 国,从1990年首次暴发PRRS起,PRRS就成了地方病.汉诺威的兽医大学与英特威国际公司合作,测定从下 萨克森郡(该国养猪密度最大的地区)分离到的病毒 株类型发现,2004-2007年问病例分离出的病毒类型 关系密切,大多形成了具有自身特征的族群,与其它欧洲国家的PRRs病毒毒株类型不同. 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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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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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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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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