共查询到20条相似文献,搜索用时 187 毫秒
1.
近几年,奶牛养殖发展较快,不少地方政府在资金、占地、小区建设等方面给予了大力扶持,养殖场(户)纷纷上马,奶牛养殖发展势头良好。但在养殖过程中,也出现了不少问题,特别是近阶段饲料价格高涨导致奶牛和源奶价格偏低,从而造成奶牛养殖成本高、效益低,制约了奶牛养殖业的健康发展。 相似文献
2.
3.
当今,不少养殖户朋友都感慨这鸡越来越娇气,越来越难养了,动不动就发病。春秋时节,一场突如其来的大风降温天气,如果你没有及时关闭窗户,第二天鸡群就可能出现呼吸道症状;蛋鸡开产换料时如果你不注意方式方法,常常会导致持续性腹泻;2008年冬天不少地区养殖户由于突击注射禽流感H5N1Re-4和5疫苗却导致了新城疫的发生等等。出现这些情况一个很重要的原因是鸡群遭受了强烈的应激,应激导致鸡群患病。 相似文献
4.
5.
畜禽养殖中存在的消毒问题与对策 总被引:1,自引:0,他引:1
消毒的目的就是为了彻底消灭各种传染源,切断各种疫病的传播途径。但在实际生产中,笔者发现不少畜禽养殖户对消毒的重要作用不够了解,重治疗,轻消毒,认为消毒不能直接见到效果,不如用药立竿见影,存在着不少的误区和问题。 相似文献
6.
侯明权 《动物科学与动物医学》2012,(5):124-125
最近一段时间,又有不少新建猪场开始动工建设,也有不少开始选择、设计、规划。春节过后,协会也陆续接到不少咨询者的电话,也亲自到山东各地实际查看了不少新建猪场的选址,以及参与了部分猪场的整体规划布局。现把了解到的一些情况,简单成文,供养猪从业者改扩建或者有意进入养猪行业的人士借鉴。 相似文献
7.
在从事临床过程中接触不少大大小小的鸡场与不同层次的养鸡户,养鸡专业户打过不少交道获益匪浅。当然,在交往的过程中也发现了不少问题,特别是不少养殖户,养鸡专业户的文化水平偏低,多数为小学文化,部分目不识丁,严重缺乏科学饲养管理知识特别是有关药物知识是分贫乏,故滥用。乱用药物现象时有发生屡见不鲜这不仅增加了养鸡费用成本,而且多因用药不当, 相似文献
8.
最近一段时问,又有不少新建猪场开始动工建设,也有不少开始选择、设计、规划。春节过后,笔者也陆续接到不少咨询者的电话,也亲自到山东各地实际查看了不少新建猪场的选址,以及参与了部分猪场的整体规划布局。现把了解到的一些情况,作总结梳理,供养猪从业者改扩建或者有意进入养猪行业的人士借鉴。 相似文献
9.
近年来,随着养鸡业的不断发展,鸡种的数量也越来越多,这对于提高养鸡经济效益,改良本地土种鸡起着重要的作用。但是,由于没有认真做好引种中的监督管理和检疫工作,导致了不少疫病发生,增加了新的疫源点,给养鸡业造成了很大的损失。为了更好地使鸡引种走上规范化,笔者就此问题阐述如下。 一、存在的问题 1.依法监督管理难度大 在市场经济条件下,种鸡引种的渠道多。规模较大的养鸡场一般到基础条件好、科学管理水平高的种鸡场直接引种,但有不少养鸡专业户和农村分散的养鸡户是通过种鸡经销商引种。这些种鸡经销商经常随意到布局… 相似文献
10.
随着经济社会的快速发展和科学技术的不断进步,我国的地质钻探行业也取得了飞跃式的发展,为促进国民经济发展、提升我国的国际地位做出了重要的贡献。但是地质钻探行业在发展的同时也面临不少的挑战,特别是地质钻探施工中存在不少的安全隐患,安全事故发生的频率比较高,造成了巨大的财产损失和人员伤亡,这就需要在地质钻探施工中加强安全与生产管理工作。本文主要从我国地质钻探施工中存在的主要问题、以及地质钻探施工中的安全管理和生产管理措施等方面来进行分析。 相似文献
11.
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
12.
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
13.
14.
15.
16.
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
17.
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
18.
19.
20.