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奶牛分娩过程发生困难,不能将胎儿顺利地由阴道排出来,称之为难产。为了母牛安全产犊,在母牛开始阵缩超过4小时以上而不见尿、羊膜囊破裂;尿膜囊破裂2小时,羊膜囊破裂1小时以上,阴门仍未露见犊牛双腿;尿膜囊和羊膜囊在阴站外悬挂2小时以上而无阵缩现象; 相似文献
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<正> 红旗农牧二场8070号母牛于86年9月6日晚生一小母犊,比预产期提前17天。产后24小时内,幼犊呼吸、体温及心脏跳动均正常,但喂奶时无食欲及吸吮反应。无正常胎粪排出,用手掏出少量干燥坚硬胎粪。第二天幼犊仍无食 相似文献
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脐尿管是连接胎儿膀胱和尿膜囊的管道,是脐带的组成部分,胎儿出生后,脐带断裂,脐尿管的断端封闭,尿液从尿道排出.绵羊的脐尿管在怀孕后期已经封闭,一般不会发生脐尿管漏尿,而驹和犊牛的脐尿管是断脐后才封闭,所以,脐尿管瘘(漏尿)多发生在驹和犊牛,由于驹大多为结扎断脐,犊牛则采用自然断脐,所以犊牛的脐尿管瘘较为多见.在多年临床实践中,我们遇7例奶牛犊脐尿管瘘,经济疗6头痊愈,1头死亡,报道如下. 相似文献
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2004年7月接诊一例新生幼犊拉稀并发脐炎,经治疗无效死亡一病例,报告如下:1发病情况某农户饲养的6岁秦川母牛于2004年7月5日晚早产(预产期差20 d)一母犊后,发生子宫全脱,由于治疗不及时母牛死亡。幼犊以靠人工用羊奶喂养,未及时吸食初乳。7日早给幼犊饲喂6日下午挤的陈旧带异味 相似文献
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犊牛狂躁病在临床上少见,辨治也较难。 1985年8月,马场大队朱振江的一头6月龄犊牛患此病就诊。主诉:一月前,该犊有时呆立,有时狂跑,见人和听到响声时表现胆怯,惊慌不安,对铁器相碰声更敏感,两耳竖起,显得紧张;有时精神沉郁,反应较慢;粪或稀,尿正常。现症:前冲后退,倒地四蹄蹬天,转圈乱撞,狂叫,人难接近; 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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