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母猪无乳综合征是一种较为复杂的繁殖性疾病,初产母猪和老龄母猪发病率较高.该病曾称为乳房炎一子宫炎一无乳综合征(MMA).但在生产中多数产后无乳的母猪并不一定发生子宫炎. 相似文献
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母猪屡配不孕是指母猪生殖机能异常,无法正常繁殖后代。如果经产母猪断奶后进行发情配种,但再次出现发情,且达到3次以上,在临床上则叫做屡配不孕。这是当前母猪生产中常见的一种繁殖障碍疾病,特别近几年随着养猪业不断朝向高度集约化的发展,更容易发生屡配不孕。该病不仅使母猪的淘汰率提高,且增大饲养成本,严重危害养猪业的发展。现分析母猪屡配不孕的发生原因,并总结出有效的综合性防治措施,供广大养猪户参考。 相似文献
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母猪子宫内膜炎是子宫粘膜的粘液性或化脓性炎症,是繁殖母猪的一种常见病,该病给养猪业带来了较大的经济损失.该病于母猪难产、胎衣不下、死胎、流产等情况下因细菌感染引起,或在配种、人工授精时消毒不严、公猪生殖器官炎症等被细菌感染,或者因母猪抵抗力下降,条件性病原体大量繁殖造成内源性感染,或继发于某些传染病. 相似文献
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母猪子宫炎是生产母猪常见的一种生殖器官疾病,主要是由于子宫黏膜受到刺激或者感染病原微生物而发生黏液性或者化脓性炎症。随着养猪场向规模化、集约化发展,该病的发生率逐渐升高。该病既会对母猪生产后哺乳性能产生影响,还会对其今后的发情产生不良影响,导致繁殖性能下降,使其淘汰率升高,严重损害养殖场的经济效益。现概述母猪子宫炎的发生原因、临床症状、预防措施以及治疗措施,为广大养殖户提供一定参考。 相似文献
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母猪不食症是由许多因素引起的,笔者根据自己的经验谈谈该病的防治体会.
1 母猪不食症的原因
1.1 传染病 任何传染病都会使母猪食欲减退或不食,症状或轻或重.笔者体会,在可以"康复"的传染病中,繁殖与呼吸障碍综合征和流行性感冒是对母猪食欲影响最严重的传染病.在群养猪发生呼吸道疾病流行之前,首先表现的症状就是群发性的食欲不振,而母猪往往就是不食.常转为慢性过程,这种情况往往发生在母猪怀孕期. 相似文献
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母猪无乳综合征是一种较为复杂的繁殖性疾病，初产母猪和老龄母猪发病率较高。该病曾称为乳房炎-子宫炎-无乳综合征（MMA）。但在生产中多数产后无乳的母猪并不一定发生子宫炎。 相似文献
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<正>母猪产后瘫痪,又称产后麻痹或风瘫,是母猪分娩后发生的一种严重的急性神经障碍性疾病,主要以母猪知觉丧失、四肢运动能力减弱甚至丧失为特征。不同年龄、品质、胎次和膘情的母猪均可发生该病,但冬春季节更易发生;同时,白色母猪较黑色母猪发病率高,引进的高产品种母猪较本土母猪发病率高。在养猪业快速发展的当下阶段,该病呈上升趋势,严重影响了繁殖母猪的生产性能,给养殖户造成了一定的损失。1病因分析 相似文献
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母猪不孕症是母猪生殖机能发生障碍以致暂时或永久的不能繁殖后代的病理现象。母猪不孕症的发生机制较多,也比较复杂,通过研究按其性质概况为八类:先天性因素、营养因素、管理利用因素、繁殖技术因素、环境气候因素、衰老因素、疾病因素、免疫性因素。该病应对上述发病机制研究分析,采取综合防治措施。(一)母猪不孕症发生的机制1.先天性因素。先天性不 相似文献
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1997年6月份以来，在象洞乡的联坊、光彩、洋贝等村发生了一种主要危害繁殖母猪，可使母猪特别是初产母猪发生流产、产出死胎、畸形胎和木乃伊股，而母猪本身并无明显症状的繁殖障碍性传染病。为此笔者对全乡繁殖母猪作调查，现报告如下：1发病情况全乡共饲养繁殖母猪921头，公猪18头，其中饲养瘦肉型繁殖母猪227头，瘦肉型分娩母猪117头。据查：该病6月份开始发生，到10月10日止，4个多月内全乡共有72头母猪发病，发病数占全乡繁殖母猪饲养数的7．8％，仅在6月1日～10月10日期间占全乡分娩母猪数309头母猪的23．3％（见表），其中初产母猪… 相似文献
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陈宇瑞 《养殖与饲料．饲料世界》2008,(9):43-44
繁殖母猪产后发热是母猪产后常见的一种疾病,确切的病因目前还不十分清楚。但它直接威胁着母猪的健康,严重时甚至可以造成母猪的死亡。母猪死亡后其所产的仔猪很难健康存活,因此该病对养猪业的发展威胁很大,是各个大小型养猪场十分重视的一种疾病。对于该病的治疗,目前在临床上还没有特效药物和一有效的方法。通过对实践中该病治疗方法的总结,此病只有采取综合治疗,才是治疗该病最好的方法。综合治疗可以使该病的治愈率达到95％以上。 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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