肉仔鸡新城疫和克雷伯菌病感染症的诊治

1发病简况 我市某肉鸡养殖专业户2011年2月中旬饲养商品肉鸡3000羽,全部为外调鸡苗。至1月龄时,鸡群生产良好,成活率高达97.8%。10日龄首免鸡新城疫疫苗,32日龄二免。鸡群在二免后第2日开始发病,并陆续出现死亡,至3月15日,病鸡共约1000羽,约占1/3,先后死亡近200羽,病死率约达25%。     

雏鸡大肠杆菌病与绿脓杆菌病混合感染的诊治

2016年2月瓮安县猴场镇某养鸡户饲养肉鸡3200羽,前期生长良好.为了预防鸡传染性法氏囊病,于22日龄对鸡群注射高免卵黄抗体,从31日龄开始鸡群发病并不断死亡,用土霉素拌料和氟哌酸饮水进行治疗,病情得不到完全控制,至38日龄时已死亡235只.通过采取综合有效的防治措施,疫情得到有效控制.     

一起肉鸡新城疫继发大肠杆菌病的诊治

1发病情况 湖北某场饲养艾维因肉鸡3万余只，18日龄时，部分鸡只出现呼吸困难、厌食、精神不振等症状，发病率为5％。发病后场主用环丙沙星和先锋噻肟进行全群治疗，疗程的第5天时，鸡群的病情不但未见好转反而加重。持续用药l星期后鸡群开始出现大批量死亡，发病率高达47％，死亡率达到发病率的30％，场主认为是新城疫和传染性法氏囊病混合感染，于是使用禽用干扰素和法氏囊高免蛋黄全群肌肉注射，注射后仍未好转，至此已死亡肉鸡6000多只，于是送送样至华中农业大学就诊。     

鸡非典型新城疫的诊治

1　发病情况某鸡场共饲养商品肉鸡 1 5万只 ,全部为外调鸡苗。新城疫 10日龄首免 ,32日龄二免。鸡群初期生长良好 ,1月龄成活率为 98 4%。二免后因气温下降 ,鸡群出现轻度呼吸困难 ,喘鸣音。采食量减少 ,精神萎顿 ,软颈 ,后出现下痢 ,排黄绿色粪便等症状 ,并陆续死亡。从 40日龄开始 ,死亡数量猛增日死亡率在 1%～ 1 5 %之间 ,用禽喘灵、红霉素治疗未见好转。2　剖检变化剖检病死鸡 10只 ,均见肌胃和腺胃交界处粘膜充血 ,腺胃乳头环状出血 ,粘膜潮红 ,肌胃粘膜皱襞充血、有出血斑 ,十二指肠弥漫性出血 ,回肠上有枣核样突起的坏死溃疡灶 ,扁…     

肉鸡传染性法氏囊炎并发肿头综合症的诊治

鸡传染性法氏囊炎 (IBD)是一种主要侵害鸡免疫器官的高度接触性传染病，由于病鸡免疫机能下降，很容易造成其他病原体感染。目前由于环境中野毒污染严重，致使免疫不当的鸡群常有 IBD发生。现将一例 IBD弱毒疫苗二免后肉鸡群发生 IBD并发肿头综合症的病例报告如下。 1发病情况 　　2000年 7月，辽宁省葫芦岛市某养鸡户饲养肉鸡 5000只， 14日龄进行 IBD弱毒苗饮水免疫， 24日龄进行二免。二免后第二天发现一栋鸡舍 (存栏 1500只 )中鸡群开始发病，三天内死亡约 300只，死亡率 20％。 2临床症状 　　病鸡精神沉郁，食欲减退，腹泻，排…     

乐家湾鸡场鸡马立克氏病的诊断

一、发病情况:西宁市东郊乐家湾鸡场1989年建成后,于9月2日和11月7日从兰州某种鸡场引进两批1日龄法国明星商品代肉鸡5300只。两批肉鸡从15日龄开始出现坐骨神经麻痹症状,20—30日龄发病达到高峰,到1990年元月中旬全群淘汰处理时,死亡1400多只,死亡率达26.4％。二、临床症状及病理剖检:整个鸡群,特别是11月引进的2300只肉鸡,羽毛干燥蓬乱,鸡体瘦弱。其中淘汰的246只2月龄病鸡群,表现行走障碍,一只脚或两只脚发生不全麻痹或完全麻痹,病鸡卧地不起,翅膀下垂,部分鸡一只腿伸向前方,另只脚伸向后     

良风花肉鸡法氏囊病继发葡萄球菌感染的诊断

１９９９年１０月我区某肉鸡养殖户饲养的一批良凤花肉用仔鸡发生了大批死亡，死亡率高达３８％，用多种抗生素及高免血清治疗，效果均不理想。经贵大动科系疫病组的实验室诊断，确诊为鸡传染性法氏囊病，并继发葡萄球菌感染。现报告如下：１流行病学及临床症状 本鸡场９月３０日从省畜牧技术开发公司引进广西南宁市良凤花肉鸡３４００只。鸡群从 ９日龄后开始发病，每天死亡２６～３４８只，累计死 １２９２只，死亡率３８％。该鸡群６日龄时曾用新支二联苗滴鼻点眼，１５日龄（发病期问）用Ｖ４克隆细胞苗（Ⅳ系苗）饮水免疫。发病后，用…     

一例蛋鸡马立克氏病的诊治报告

河北省滦南县某蛋鸡养殖户购人雏鸡1000只，饲养至90日龄时，鸡只开始陆续发病并偶有死亡，到120日龄时鸡群有50多只发病。情况如下：     

一起肉鸡感染大肠杆菌病并继发球虫病的诊断

某肉鸡场饲养的艾维因（AA）肉鸡３２日龄出现死亡，日死亡率在２‰左右。经临床诊断、剖检观察和实验室诊断为病原性大肠杆菌病并继发球虫感染。１流行情况该场现养AA肉鸡１００００只，按常规程序免疫。鸡群３２日龄开始发病，并陆续出现死亡，死亡数由５～６只／天发展到１０～２０只／天，累计死亡１２３只。病鸡临床表现为促发性呼吸道症状，采食量明显下降，消瘦，脱水，排白色或黄绿色稀粪。２病理变化肝周炎：肝肿大，表现覆盖有一层白色易剥离的纤维素性渗出物（９／１８）；心包炎：心包膜浑浊，心外膜水肿，并覆盖有黄色纤维蛋…     

一例雏鸡大肠杆菌病的诊治

１鸡群发病情况郑州市南郊某一肉鸡饲养场于２００１年３月６日从某一父母代肉鸡场引进艾维茵肉仔鸡苗１１０００只，在第１日龄、第２日龄发现部分雏鸡比较弱小，乱叫不停，第３日龄开始出现死亡，第５日龄至第８日龄死亡达到高峰，由于及时采取治疗措施，到１１日龄鸡群基本得到控制，死亡率明显降低，第３日龄至第１１日龄，共死亡１３０９只，死亡率为１１．９％。２临床症状及病理变化部分鸡离群呆立、挤堆、精神沉郁，不爱动，羽毛松散，食欲减退，排白色稀粪，肛门周围羽毛污染，剖解主要病变有：２．１蛋黄囊和脐炎表现为蛋黄吸收不…     

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。