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作为肉、奶和纤维的来源之一,山羊饲养对世界范围内经济,尤其对第三世界国家极其重要。近年来,英国因生产马海毛(安哥拉羊绒)和山羊绒的需要,引进了安哥拉山羊和绒山羊,国内山羊数量增加到84000只,随之而来,引进疾病的风险也增加了,并可能殃及英国本地山羊和绵羊。疾病仍然是影响动物健康和山羊养殖业效益的主要限制性因素。本文讨论放牧小山羊(4周龄以上)和成年山羊腹泻和消瘦的诊断及防治。1 腹泻的常见病因根据SAC兽医部剖检及对送检样品诊断结果,1997~1998年苏格兰成年山羊腹泻最常见的病因是寄生虫性… 相似文献
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<正> 我县发展海岛养羊已有10多年历史,近几年由于贯彻落实党在农村的各项经济政策,调动农民饲养山羊的积极性。1986年全县有10多个海岛饲养山羊2000多头,涌现出许多饲养山羊的专业户、专业大户及联合体。为了更好地利用自然资源,发展山羊生产,我们总结了海岛饲养山羊的经验,现介绍如下: 相似文献
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规模养殖山羊常见病的防治 总被引:1,自引:0,他引:1
近年来,随着人民生活水平提高,人们对羊肉等山羊产品的需求量也在逐年增加,促进了山羊生产的产业化发展.山羊养殖规模不断扩大,尤其是栏舍圈养的饲养方式,较好地解决了当前饲草资源不足的问题.传统养羊以放牧饲养为主,零星分散养殖,山羊发病较少;但山羊在圈养过程中,受栏舍卫生、气候条件、饲养管理等因素影响,容易发生瘤胃积食、羊肠毒血症、羊痘以及寄生虫病等,如不及时采取有效防制措施,往往给养殖户造成较大损失.在日常养羊生产中,搞好日常饲养管理,根据羊场及当地疾病流行情况,必须合理安排免疫接种的次数与时间,积极有效预防、控制疾病的发生. 相似文献
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世界上的山羊数量虽然很多,但对它的营养和饲养迄今研究很少,山羊的科学饲养在世界各国一直得不到应有的重视,从而也被养殖者忽略了其合理营养供给的必要性.实际上,山羊为了生产肉、奶、毛和繁殖后代,必须采食能够保证其本身的生存和用于合成这些产品的营养物质. 相似文献
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师守Kun 《河南畜牧兽医(综合版)》2000,(10):4-6
山羊生产在我国的养殖业中占有重要位置,山羊业为我们人类提供的主产品有肉、奶、绒、毛、毛皮和皮。参考联合国粮农组织 (FAO)的 1998年统计资料,可以看出我国的山羊生产在世界上占有很大的比重,但生产水平相对不高 (见表 1)。由于山羊为多种用途的家养动物,因此进行单项性能的国间水平比较时还要考虑到利用山羊性能的侧重点差异。利用表 1的数据并进一步计算比较,可知我国为世界第一山羊饲养大国,存栏数已占世界的 19.67%。如果从存栏数的比例上看,中国、印度和巴基斯坦为世界的前三位山羊饲养大国,但是三国的生产水平一般,三… 相似文献
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中国养羊历史悠久,北方饲养家羊历史可以追溯到七千年前,南方养羊历史可能晚于北方.目前我国养羊业发展迅速,是世界养羊大国.绵山羊饲养量、出栏量、羊肉产量、绵山羊生皮、山羊绒产量均居世界第一.
西北地区疆域辽阔,人口密度低,气候条件复杂,天然草地资源丰富而多样,是养羊业的主要基地.目前,中国经济结构正在进行较大调整,西北地区养羊业面临严峻考验,若不改变以往粗放型饲养模式,势必会影响整个地区经济和养羊业发展.本文对西北5省(陕西、甘肃、宁夏、青海、新疆)的养羊现状和近几年(2005-2010年)的发展情况进行剖析,并对存在问题提出解决对策. 相似文献
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永嘉县山羊规模饲养存在的问题及对策永嘉县草山面积达407.7万亩,饲草资源十分丰富。适宜发展山羊生产。近年来,山羊规模饲养发展十分迅速,92年末存栏50头。以上的有44户。3272头,93年达52户4120头。最近。我们对全县30户养羊专业户的经济效... 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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在归纳总结RFLP和PCR-RFLP标记技术的原理、优缺点的基础上,系统论述了其在牦牛遗传育种研究中的应用现状,并提出了个人的建议和看法。 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