鸡肌胃糜烂症的防治

鸡肌胃糜烂症主要发生于仔鸡，尤其是肉用仔鸡最易发病，1～5月龄的鸡最易发病，死亡率高者可达10％以上。如果发生混合感染或并发感染其他疾病，则死亡率更高。该病常给养鸡业造成较大的经济损失。     

当前养鸡别忽视肌胃糜烂症

<正>1临床症状与发病特点1～5月龄的鸡发生,死亡率不等,高者可达10%以上。患鸡主要表现为食欲减少,精神萎靡,蹲伏,羽毛蓬松,消瘦,鸡冠与肉髯苍白,贫血,呕吐物为黑褐色稀液(故本病又有"黑色呕吐病"之称),腹泻,拉黑褐色软粪或黑褐色稀粪。患鸡生长缓熳,并有突然死亡现象,如发生混合感染     

关于肉用仔鸡猝死综合征的调查及分析

肉用仔鸡猝死综合征,又称暴死症或急性死亡综合症,这种病多发生于肌肉丰满、外观健康的肉用仔鸡,以突然死亡为特征。该病在我县发生较多,经调查其死亡率3—5％,死亡高峰于第三、四周龄,即使在维生素供应充足的条件下此病仍有发生。1 临床症状 发病前鸡群无任何明显征兆,采食运步均正常,病鸡表现较安静,发病初期,大部分病鸡     

雏鸡白痢杆菌病的诊治

鸡白痢是由鸡白痢沙门氏菌引起的鸡的传染病。雏鸡通常表现为急性全身性感染,病雏鸡以精神倦怠、白痢为特征,成鸡则表现为局部和慢性感染或隐性感染。2005年5月18日奇台县古城乡果园二队个体养殖户陈某饲养的肉仔鸡8日龄发生了以拉白色稀粪为主要特征的传染病,经采取措施,到12日龄时基本控制住病情。现报告如下:1发病情况2005年5月10日该专业户从乌鲁木齐市养禽场购进肉用仔鸡2000羽。发病前为阴雨天气,鸡舍内温度有所下降,6日龄时见几只雏鸡拉白色稀粪。2临床症状雏鸡群内部分雏鸡出现精神沉郁,低头缩颈,闭目嗜睡,翅下垂,羽毛松乱,食欲下降…     

一起肉鸡腹水症的诊治体会

肉鸡腹水症(Ascites syndrome in Broilers,ASB)是一些高海拔(1500m以上)地区幼龄肉鸡最常见的病,因此也称之为"高海拔病"。肉鸡腹水综合症是主要发生于幼龄肉用仔鸡的一种常见病。该病的发病率和死亡率近年来呈上升趋势,给养鸡业带来的危害日益严重。腹水综合症最常发生于生长期的肉用仔鸡,特别是一些快大型的肉鸡品种,3日龄即可发病,2～3周龄的鸡敏感性高于大龄鸡,症状突出表现在4周龄以后,死亡高峰见于4～7周龄快速生长期。该病发病率和死亡率在不同     

鱼粉和鸡的肌胃糜烂病

鸡的肌胃糜烂病主要发生于肉用仔鸡。其特点是肌胃糜烂和溃疡,甚至穿孔,腺胃、肌胃和肠道含有黑褐色的内容物;病鸡表现食欲减低、消瘦,呕吐黑色物,所以又叫做鸡的黑色呕吐病。不同年龄的鸡均可发生,一般多发生于1～5月龄之间。此病的死亡率虽然不高,但严重影响肉鸡增重,给     

鸡坏死性肠炎的诊治

鸡坏死性肠炎又称鸡肠毒血症,是由魏氏梭菌引起的一种急性传染病。主要表现为病鸡排出红褐色乃至黑褐色煤焦油样稀粪。病死鸡以小肠后段黏膜坏死为特征。近年来,该病在部分地区尤其是肉仔鸡饲养区广泛流行     

传染性发育障碣综合症的诊断及防制

1临床症状 本病主要发生于肉用仔鸡，特别是3周龄以内的幼龄肉用仔鸡最易发病，但不同地区不同时期以致不同的鸡群中所发生的发育障碍综合症的症状也不一致。肉用仔鸡最早发生于3～7日龄，病初精神倦怠，水样腹泻，粪便内含未消化的食物，病鸡腹部膨胀下垂。体重迅速下降，仅为正常鸡体重的1／3，个体矮小，生长明显受阻。     

鸡白痢的综合防治技术

鸡白痢是由鸡白痢沙门氏菌引起的一种常见的传染病,该病可发生于任何品种、不同日龄的鸡群中,尤其是3周龄内的雏鸡,发病率和死亡率均很高。雏鸡发病后主要呈急性经过,主要病症是排出白色稀粪;成年鸡感染后不会出现明显症状,但会导致产蛋率、受精率等降低。养鸡场一旦发生鸡白痢,病原很难被清除,严重影响养殖场经济效益,现主要探讨鸡白痢的发病原因、临床症状以及防治措施等,供各养殖户参考。     

一例肉鸡坏死性肠炎的诊治

鸡坏死性肠炎又称肠毒血症,是由C型魏氏梭菌引起的一种急性传染病,以1～4月龄鸡感染多见,对育成鸡、产蛋鸡均能构成一定的危害.主要表现为排出红褐色乃至黑褐色煤焦油样稀粪,病死鸡以小肠后段黏膜坏死、臌气,内有黑褐色肠容物.常发生于2～12周龄的鸡,但3～6个月的鸡也有发生.笔者遇到一起土种肉鸡病例,经确诊为坏死性肠炎,使用药物治疗,病情迅速得以控制,现将该病的诊治情况报道如下.     

Disease and destiny-mystery and mastery

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.     

Foot and mouth disease and bluetongue: differences and similarities

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.     

德国荷兰畜禽产品质量安全交流与启示

2018年岁末,笔者有幸赴德国和荷兰,就畜产品质量安全控制及检测技术等进行了短期交流,收获颇丰,现具体介绍如下。一、交流情况德国面积35.73万平方千米,人口约8175.2万,是欧盟人口最多的国家,农业发达,机械化程度很高。德国的畜牧业以猪、牛、羊和禽类为主,畜牧业产值占农业生产总值的61%。德国虽然农业比重很小,但却是有机农业运动最早的发起国,也是目前世界上有机农产品生产与消费大国。     

奶牛肢蹄病及其防治

简介常见奶牛肢蹄病种类及其症状,从日粮营养、运动场地面结构、环境卫生、饲养管理、遗传育种、疾病管理等方面简析奶牛肢蹄病的病因,并提出相应的预防措施。     

畜禽物种多样性及其保护和利用

文章就我国畜禽物种多样性资源的现状、保护和利用等方面进行阐述,为生态脆弱的喀斯特地区畜牧业可持续发展提供参考。     

马的咽气癖及其防制措施研究进展

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。     

牛羊焦虫病诊断与防治技术

近几年来,辽宁省牛羊饲养业迅速发展,焦虫病的危害越来越明显,已成为危害牛羊的主要疾病之一。为了提高牛羊焦虫病的防治水平,保证我省牛羊饲养业的健康发展,笔者在参阅文献和同行们诊疗经验的基础上,结合自己的治疗实践,详细阐述了我省牛羊焦虫病近几年的流行特点和诊断防治方法。     

国内外蛋氨酸与赖氨酸市场分析与展望

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。