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一 中国禽业发展历史回顾
1935年统计资料显示,全国有鸡2．96亿只,鸭0．56亿只,共3．6亿只。抗日战争胜利后降为3．0亿只,新中国建立前一年仅有2．5亿只。1952年底,全国家禽数量恢复到3．0亿只,1957年底,全国家禽数量7．1亿只。2007年末我国家禽出栏量为114亿只,家禽存栏量为56亿只,禽蛋产量约为3000万吨。 相似文献
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<正> 饲养种母火鸡 舖厚垫料饲养种母火鸡的标准是:大型火鸡饲养的密度为1m~2的面积饲养一只半,中型火鸡饲养二只,小型火鸡饲养两只半;而公火鸡的饲养密度为1m~2只养一只。饲养一只成年母火鸡消耗垫料30公斤。垫料应是干燥的,经过消毒的。 相似文献
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2002年11月,某蛋种鸡场饲养的一批父母代蛋种鸡出现一种以眼眶、肉髯肿胀,流鼻液,呼吸困难,高发病率、高死亡率为特征的疫病,经临诊及实验室检验,确诊为鸡传染性鼻炎继发鸡腺胃型传染性支气管炎和大肠杆菌病,现将诊治情况报道如下。1发病情况2002年11月1日,某鸡场2号舍蛋种鸡(52周龄,5411套)开始出现死鸡:2日为2只,3日为12只。立即投服先锋氧氟沙星,至4日死鸡减少为8只,5日为5只,6日为6只,7日为1只。至11月8日死鸡数又上升为7只,9日为21只,10日为28只,11日为36只。至11月20日疫情得到扑灭止,共死亡220只,死亡率为4%,发病率约为30%,产蛋率下… 相似文献
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张正仁 《中国预防兽医学报》1987,(1)
1985年6月,我县S鸡场和W鸡场相继发生一种鸡的急性传染病,经诊断为鸡传染性法氏囊病,现报道如下。一、发病情况:S场西赛斯雏鸡(1,715只)于47日龄时发病,一周后平息,共死亡655只,死亡率为38.19％;三黄鸡(1,579只)于28日龄时发病,一周后平息,病死鸡298只,死亡率为19.05％。 相似文献
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上海动物园近年来重视珍稀鸟类繁殖的研究,1987年繁殖了一批珍禽有东方白鹳5只、鹈鹕15只、白琵鹭19只、白鹮8只、鸸鹋20只、美洲驼5只、白腹锦鸡15只、疣鼻天鹅及黑天鹅等,这些鸟类都属国家一、二类保护动物,或为进口鸟类。繁殖季节饲养人员为鸟类繁殖创造条件,为亲鸟调整饲料、选择配偶,设置人工 相似文献
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我场有一批雏麻鸭,发生以眼睛出现凝乳样分泌物、头向后转为特征的疾病,经诊断为维生素 A缺乏症。现将诊疗情况报告如下。发病经过:该场每年4月都要春孵大量鸭苗,这次发病的是其中的一批,共1500只,平时只喂给碎米饭,未加喂青菜。出壳一周后发病,陆续死亡,由每天几只到十来只,其中一个分场有600只雏麻鸭,发病一周共死亡100只,而且死亡数日趋 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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