牛传染性胸膜肺炎的诊治

牛传染性胸膜肺炎也称牛肺疫,是由丝状霉形体引起的对牛危害严重的一种接触性传染病,主要侵害肺和胸膜,其病理特征为纤维素性肺炎和浆液纤维素性肺炎.     

牛传染性胸膜肺炎

牛传染性胸膜肺炎也称牛肺疫,是由丝状霉形体引起的对牛危害严重的一种接触性传染病,主要侵害肺和胸膜,其病理特征为纤维素性肺炎和浆液纤维索性肺炎。     

牛肺疫的诊断要点及防治措施

牛肺疫是一种接触性传染疾病,对牛有很大的危害。牛肺疫又称牛传染性胸膜肺炎,对牛的肺、胸部淋巴结以及胸膜等器官会造成伤害。该病的特征性表现是肺实质纤维素性肺炎以及肺小叶间淋巴管浆液性发炎。本文主要介绍牛肺疫的诊断要点和防治措施,供参考。     

牛传染性胸膜肺炎的流行与防控

正牛传染性胸膜肺炎也称牛肺疫,是由于丝状霉形体引起的接触性传染病,主要对牛的胸膜与肺部构成危害,病理特征主要是浆液纤维素性肺炎与纤维素性肺炎。近些年我国畜牧业经济发展较快,牛传染性胸膜肺炎的影响范围逐步扩大。1病原牛肺疫丝状霉形体细小、多形,常见的形状是球形。大多都存在于病牛肺组织和胸腔气管分泌液中,干燥及等都不适     

防控牛肺疫

正牛肺疫是牛的一种接触性传染病,牛肺疫是常用名,其学名叫牛传染性胸膜肺炎,其病原体为牛胸膜肺炎丝状支原体,此病特征是感染此病的牛牛肺脏小叶间组织浆液性纤维蛋白性浸润,肺实质发生纤维蛋白坏死性肺炎,导致病肺剖检切面可见大理石样外观,并常见病畜胸腔有浆液     

牛传染性胸膜肺炎的防治体会

牛传染性胸膜肺炎也称牛肺疫,是由丝状支原体感染引起的危害严重的接触性传染病,以纤维素性肺炎和浆液性肺炎为主要临床症状。1诊断     

牛肺疫的诊断与防控措施

正牛肺疫又被称为牛传染性胸膜肺炎,即俗称的烂肺疫,主要是由丝状霉形体引起,为接触性的传染病、感染牛的肺和胸膜是主要的被侵害器官,其病理特征是纤维素性肺炎和浆液纤维素性肺炎。该病主要感染牦牛、奶牛、黄牛、水牛及鹿和羊,无年龄、季节、性别和品种区别,多呈急性发病,尤以1岁以内的幼牛的易感性最强。临床康复15个月甚至2~3年后仍然具有感染健康牛的能力。冬、春、秋季节牛群发病较多,在新牧区发病后会呈现暴发性流行,而且患牛的病情危     

牛、羊几种常见病的临床症状与治疗

1牛肺疫 牛肺疫是由丝状霉形体引起的对牛危害严重的接触性传染病,主要侵害肺和胸膜,其病理特征为纤维素性肺炎和浆液纤维素性肺炎。病牛或带菌牛是主要传染源,病原体随呼吸和呼吸道分泌物排出体外,污染饲料、饮水,经消化道或生殖道传染。     

牛传染性胸膜肺炎

牛传染性胸膜肺炎也称牛肺疫,是由丝状霉形体引起的对牛危害严重的一种接触性传染病,主要侵害肺和胸膜,其病理特征为纤维素性肺炎和浆液纤维紊性肺炎。1病原牛肺疫丝状霉形体,过去称星球丝菌。细小,多形,但常见球形,革兰氏染色阴性。多存在于病牛之肺组织、胸腔渗出液和气管分泌物中。日光、干燥和热力均不利于本菌的生存;对苯胺染料和青霉素具有抵抗力。但1%来苏儿、5%漂白粉、     

牛肺疫的症状与防控方法

正牛肺疫也称牛传染性胸膜肺炎,俗称烂肺疫。是由丝状霉形体引起的对牛危害严重的一种接触性传染病,主要侵害肺和胸膜,其病理特征为纤维素性肺炎和浆液纤维素性肺炎。1症状本病潜伏期的长短,视病原体的毒力和数量,动物感受性和机体抵抗力以及饲养管理等因素的不同也有所不同。一般是2~4周,最短7d,最长可达数月。潜伏期常无明显症状,不易引起注意。病初精神萎靡,食欲不佳,产乳     

牛结节性皮肤病诊断及防控

牛结节性皮肤病是一种急性、亚急性传染性疾病。由于养殖户不科学地引种行为,造成该类疾病从其他国家引入本地区。牛结节性皮肤病又被称为牛结节疹、牛结节性皮炎或者牛疙瘩皮肤病,是由结节性皮肤病毒引发的一种急性亚急性传染性疾病。该类疾病被世界动物卫生组织规定为必须通报的疾病,我国将其划归为一类重大动物疫病。牛结节性皮肤病首先发生于新疆地区,随后由于不科学的运输和引种造成该类疾病,呈现逐渐扩大蔓延的趋势,带来的损失十分严重。需要掌握牛结节性皮肤病的具体流行特点、临床表现,做到及时发现及时处置,控制疫情的传播蔓延,确保我国牛养殖安全。该文主要论述牛结节性普皮肤病的诊断和防控。     

牛结节性皮肤病的诊断及防控

牛结节性皮肤病又称牛结节性皮炎、牛结节疹或牛疙瘩皮肤病。临床上以发热、皮肤出现水肿、消瘦、淋巴结肿大、局部溃疡、可形成坚硬的结节为主要特征,世界动物卫生组织将该病列为法定报告的动物疫病。该病潜伏期长,病毒流行传播快不易发现;发病急,是严重影响养牛业健康发展的疫病之一。加强生物安全的综合防控措施,强化动物检疫工作,可以最大限度地减少疫情的传播。牛结节性皮肤病的发生,早诊断、早处置,对控制疫情的蔓延极为重要。各地畜牧兽医部门应建立内部疫情通报制度,落实疫情报告责任,使疫情地区接壤的相关区域尽快建立免疫隔离区,防止疫病的蔓延和传播。     

牛传染性鼻气管炎诊断和防治

牛传染性鼻气管炎又被称为坏死性皮鼻炎,是由牛传染性鼻气管炎病毒感染引发的一种急性呼吸道疾病。不同年龄的牛感染传染性鼻气管炎病毒后表现的临床症状存在一定差异,年龄较小的牛会表现为明显的临床症状,年龄较大的牛呈现隐性感染或持续性感染,患病牛长时间或终生携带病毒,污染周围环境后造成病情反复流行,病情难以控制、难以消灭。牛传染性鼻气管炎造成的死亡率相对较低,但是会严重影响牛群正常生长与采食,需要掌握该类传染性疾病的流行特点,并进行严格诊断,然后构建有效的防控措施,降低发病率。该文分析牛传染性鼻气管炎的流行病学、临床症状、病理变化、诊断方法和防治措施。     

Severe respiratory disease in dairy cattle in New York State associated with bovine respiratory syncytial virus infection

Severe respiratory disease associated with bovine respiratory syncytial virus (BRSV) infection has been identified in dairy cattle in New York State. The cases identified occurred in dairy calves and heifers. The disease was characterized in 4 animals by pathologic changes including interstitial pneumonia, necrotizing bronchiolitis with multinucleated syncytial epithelial cells and interstitial emphysema. BRSV antigen was demonstrated in lung samples or was isolated in tissue culture in all 4 cases. A retrospective survey of 6279 bovine diagnostic accessions between 1977 and 1982 revealed 66 cases of interstitial pneumonia, often with concurrent bronchiolitis. In this 5 year period, only 1 case in 1981 had interstitial pneumonia and bronchiolitis with pathologic features consistent with BRSV infection. It is concluded that pathogenic BRSV has entered New York State and that it is contributing to clinical respiratory disease in dairy cattle.     

Clinical efficacy of carprofen as an adjunct to the antibacterial treatment of bovine respiratory disease

A clinical trial was undertaken to investigate the efficacy of a single dose of carprofen (CPF) in the treatment of bovine respiratory disease in cattle. Tilmicosin was used as a basal treatment in all animals. Six hours after dosing, body temperature and respiratory rates in animals treated with CPF-tilmicosin had decreased and were significantly lower than in the animals treated with tilmicosin alone (P < 0.05). Over the period of clinical observation, CPF-tilmicosin treatment produced a clinical resolution of the pneumonia similar to treatment with tilmicosin alone. However, it is significant from an animal welfare perspective that over the period of the study after treatment, CPF-tilmicosin therapy produced significantly greater symptomatic improvement than tilmicosin.     

新生隐球菌病研究进展

隐球菌是条件致病性深部真菌,易发于细胞免疫功能受损的人群.新生隐球菌是隐球菌属的重要致病菌,属环境腐生菌,可从土壤和鸽粪中分离到,并被认为是人和动物最主要的传染源.医学方面,近年来由新生隐球菌引起的感染有逐渐增多的趋势,主要引起人的脑膜炎和肺炎.动物医学方面,可引起马的呼吸道病、牛羊的乳腺炎.鸽是隐球菌的自然宿主,但并不引起发病.该文从隐球菌病的病原特征、分类、毒力因子、致病性等生物学特性进行了概述,并对人和动物新生隐球菌病的传染和流行的基本环节、发病机制、临床表现、防治等方面的研究进展进行了综述.     

Pasteurella multocida and bovine respiratory disease

Pasteurella multocida is a pathogenic Gram-negative bacterium that has been classified into three subspecies, five capsular serogroups and 16 serotypes. P. multocida serogroup A isolates are bovine nasopharyngeal commensals, bovine pathogens and common isolates from bovine respiratory disease (BRD), both enzootic calf pneumonia of young dairy calves and shipping fever of weaned, stressed beef cattle. P. multocida A:3 is the most common serotype isolated from BRD, and these isolates have limited heterogeneity based on outer membrane protein (OMP) profiles and ribotyping. Development of P. multocida-induced pneumonia is associated with environmental and stress factors such as shipping, co-mingling, and overcrowding as well as concurrent or predisposing viral or bacterial infections. Lung lesions consist of an acute to subacute bronchopneumonia that may or may not have an associated pleuritis. Numerous virulence or potential virulence factors have been described for bovine respiratory isolates including adherence and colonization factors, iron-regulated and acquisition proteins, extracellular enzymes such as neuraminidase, lipopolysaccharide, polysaccharide capsule and a variety of OMPs. Immunity of cattle against respiratory pasteurellosis is poorly understood; however, high serum antibodies to OMPs appear to be important for enhancing resistance to the bacterium. Currently available P. multocida vaccines for use in cattle are predominately traditional bacterins and a live streptomycin-dependent mutant. The field efficacy of these vaccines is not well documented in the literature.     

一起肉牛副流感病毒3型、巴氏杆菌、牛支原体混合感染的诊治

牛呼吸道综合征往往是多种病原体混合感染引起,致病机制复杂。云南省昆明市某肉牛养殖场部分犊牛出现了以咳嗽、气短、流鼻涕、腹泻等呼吸道症状为主要表现的呼吸道疾病,随后多头相继死亡,剖检主要病变为气管、胃黏膜、小肠出血,肺脏肝变,肝脏出血肿大,心脏出血,心包黏连等;经采病料用常见呼吸道疾病病原（牛病毒性腹泻病毒,牛冠状病毒,牛副流感病毒3型,牛呼吸道合胞体病毒,牛疱疹病毒1型,多杀性巴氏杆菌,溶血性曼氏杆菌,牛支原体）8联PCR检测试剂盒检测,结果为副流感病毒3型、多杀性巴氏杆菌、牛支原体混合感染。经用加米霉素、10%替米考星和20%氟苯尼考等大环内酯类药物治疗,结合加强饲养管理,多数病牛恢复了健康。     

适度规模养殖中牛疫病种类及防治

畜牧业的发展在提高我国区域经济发展水平以及个人收入水平上发挥重要的作用,其中牛肉因其肉质鲜美而受到消费者的青睐,养牛业的发展势头也越来越好,不少乡镇地区的农户们开始发展养牛业,越来越多适度规模的养殖场开始崛起。但是养殖中的疫病流行问题比较常见,严重影响养殖户的经济效益获得。该文主要论述适度规模养殖中牛疫病种类及防治。