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猪传染性胃肠炎是由冠状病毒引起的一种以呕吐、严重腹泻和失水为主要特征的传染病。本文从该病的流行特点、临床表现、病理解剖及实验室诊断等方面论述了该病的特点,并提出了综合防制措施,为进一步控制该病提供了有力的理论根据。 相似文献
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高致病性禽流感是一种较为常见的疾病,该病具有传播范围广,传染性强的特点,可严重影响我国家禽养殖业的健康发展,给养殖户带来巨大的经济损失.该病一年四季均可发生,但秋、春季发病率较高.因此,为降低该病的发病率,养殖人员必须熟练掌握该病的流行特点及防控措施.本文结合高致病性禽流感的流行特点、临床症状等,对该病的防控措施进行论... 相似文献
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鸡传染性支气管炎是由传染性支气管炎病毒引起的一种急性高度接触性呼吸道疾病。本文从该病的病原、流行病学特点、预防诊治等方面进行了阐述,以期为防治该病提供参考。 相似文献
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副猪嗜血杆菌的分离鉴定及药敏试验 总被引:2,自引:1,他引:1
黑龙江省近几年频繁发生以多发性浆膜炎、关节炎、脑膜炎以及急性死亡为特征的传染病,为猪场造成严重经济损失,为了确诊是否有副猪嗜血杆菌感染,采集病死猪肝脏、脾脏和肺脏等病料,进行副猪嗜血杆菌的分离;对其理化特性进行鉴定,应用PCR方法对其16S rRNA基因扩增后进行克隆测序,将测序结果在GenBank上进行BLAST分析,把相近的基因序列应用DNAStar软件进行同源性和进化关系分析;用分离菌株进行药物敏感性试验,筛选敏感药物。结果分离出一种具有多形性的NAD依赖性菌株,经鉴定为副猪嗜血杆菌;16S rRNA基因进化分析结果表明,分离菌株与以往报道的副猪嗜血杆菌中国、日本和美国分离株属于同一亚群,而西班牙分离株属于单独的亚群;分离菌株对壮观霉素和头孢拉定高度敏感。 相似文献
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MICHAEL PEES INGMAR KIEFER MARIA-ELISABETH KRAUTWALD-JUNGHANNS LUCIO FILIPPICH JUERGEN KIEFER GERHARD OECHTERING 《Veterinary radiology & ultrasound》2006,47(4):370-375
The use of ultrasound as a diagnostic tool in birds has been documented for cardiac, urogenital, and liver disease. However, its use in gastrointestinal tract disease is not defined. Therefore, the purpose of this study was to compare the ultrasonographic findings of the intestine and liver of six healthy racing pigeons with those of six racing pigeons with gastrointestinal disease. The echogenicity of the liver was significantly different between the two groups. Pigeons with gastrointestinal disease had less homogeneous liver echogenicity with focal heterogeneous areas and the hepatic blood vessels were visible and dilated. The duodenum was visualized and its mean diameter of 7.2 +/- 0.3 mm in the diseased pigeons was significantly wider (P < or = 0.001) than the 5.7 +/- 0.2 mm in healthy birds. The thickness of the duodenal wall in healthy and diseased pigeons was 1.6 +/- 0.1 and 2.4 +/- 0.1 mm, respectively, and they were significantly different (P < or = 0.001). We defined baseline measurements for the duodenal loop in pigeons and provided evidence that ultrasound can be a useful diagnostic tool for investigating intestinal disease in pigeons. 相似文献
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口蹄疫转基因植物可饲疫苗研究进展 总被引:1,自引:0,他引:1
口蹄疫是由口蹄疫病毒引起的一种急性热性高度接触性传染病,给畜牧业造成极大的经济损失,疫苗是预防和控制该病的有效方法。近年来,转基因植物可饲疫苗由于其易于生产、成本低廉、使用方便和安全等诸多的优点成为口蹄疫新型疫苗的研究热点。文章综述了口蹄疫转基因植物可饲疫苗的研究现状,介绍了其原理和方法,分析了其优缺点和改进方法,并对其应用前景进行了展望。 相似文献
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Jembrana disease is an acute infectious disease of unknown etiology enzootic among Bali cattle (Bos javanicus) in Indonesia. Morphologic examination of 75 female Bali cattle between 18 months and 4 years old affected with Jembrana disease consistently revealed pulmonary granulomatous vascular lesions. The lesions were diffusely distributed throughout the lung. The principal lesion was the presence of a large number of intravascular macrophages that filled the lumina of pulmonary veins and pulmonary arteries of a vascular diameter of 20-200 microns, excluding the rest of blood cellular components. Concentric layers of perithelial cells also with plasma cells and macrophages were occasionally present around both veins and arteries. Infiltration of polymorphonuclear leukocytes or small lymphocytes was not seen. Destruction or necrosis of tissues or blood vessels was rarely seen. Because this vascular lesion was found in the lungs of all affected cattle examined, this change is useful for the postmortem diagnosis of Jembrana disease. Moreover, its presence could be used to distinguish Jembrana disease from malignant catarrhal fever and other lymphoreticular proliferative conditions that are frequently found among cattle in Indonesia. 相似文献
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W. F. BLAKEMORE 《The Journal of small animal practice》1986,27(7):447-455
A case of feline mannosidosis is described. The animal was very small for its age (nine months) and showed skeletal defects and severe neurological signs which were first recognized at seven months of age. There was extensive cytoplasmic vacuolation of cells in visceral organs and in the nervous system. The vacuoles were usually empty. This case of mannosidosis in the cat most closely resembles the severe human variant of this disease rather than the bovine disease. 相似文献