雏鸡魏氏梭菌病的诊断和防治

感染禽类的魏氏梭菌主要是A型魏氏梭菌,其次是C型魏氏梭菌,可分为临床型疾病和亚临床型疾病两种.临床型坏死性肠炎主要危害2~5周龄的雏鸡,临床特征为急性死亡和高死亡率,给养禽业带来巨大的经济损失.亚临床型疾病主要表现为肠黏膜局灶性坏死、肝炎或胆管性肝炎.同时,魏氏梭菌还能引起人类和其他动物发病.因此,对魏氏梭菌病的防治就显得尤为重要.本文主要讨论了雏鸡魏氏梭菌病的临床症状及病理剖检变化、发病原因,并提出有效防治措施,为该病的防治提供参考.     

兔魏氏梭菌病的诊断报告

魏氏梭菌病是由魏氏梭菌及其毒素引起的一种以消化道为主的全身性疾病，致死率较高，对养兔业危害较大。因此需广泛普及诊断和防治知识。     

兔魏氏梭菌病的诊治体会

兔魏氏梭菌病,又称兔魏氏梭菌性肠炎,是由A型魏氏梭菌所产外毒引起的肠毒血病引起家兔急性水泻的一种急性传染病,发病兔致死率很高。现将一起肉兔发生兔魏氏梭菌性肠     

奶牛魏氏梭菌病的诊断和防治

正奶牛魏氏梭菌病是一种急性传染病,是由于感染魏氏梭菌而引起。该病发病率较低,但死亡率较高,往往呈急性发病。发病年龄上,成年奶牛多发,而犊牛基本不会发生。病牛临床主要特征是突然发病、死亡以及实质器官和消化道出血。笔者通过一些临床病例和治疗经验,总结出奶牛魏氏梭菌病的诊断方法和防治措施,供广大养殖户参考借鉴。奶牛魏氏梭菌病又称为猝死症,是一种急性传染病,发病率较低,但死亡率高。引起该病的原因较多,     

贵州省某规模化猪场莱乌猪魏氏梭菌病的诊治

魏氏梭菌病是由魏氏梭菌(也称产气荚膜梭菌)感染引起以病畜多种器官出血、急性病变和突然死亡、病死率高为主要特征的疾病,俗称"肠毒血症"。贵州某规模化猪场莱乌猪发病,笔者经流行病学调查、临床症状观察、病理剖检观察、实验室诊断、细菌分离鉴定及动物回归试验,最后确诊为魏氏梭菌感染并给出防治措施。     

D型魏氏梭菌毒素研究进展

魏氏梭菌病是由魏氏梭菌引起的一种重要的人兽共患传染病。可导致各种动物的肠毒血症或坏死性肠炎,D型魏氏梭菌病包括牛、羔羊、绵羊、山羊以及灰鼠的肠毒血症等。D型魏氏梭菌所产的毒素是引起动物死亡的重要因素之一,本文综述了D型魏氏梭菌毒素的结构、功能以及检测方法的研究进展。     

一起兔魏氏梭菌病的诊治和体会

兔魏氏梭菌病是由A型魏氏梭菌及其所产生的外毒素引起的肠道急性传染病,以剧烈腹泻和脱水死亡为主要特征。该文报道一例该病的诊断,并提出相应的防治措施。     

兔魏氏梭菌病的诊治报告

兔魏氏梭菌病是由A型魏氏梭菌及其毒素引起兔的一种以消化道为主的全身性疾病,其特征是患兔水样腹泻和脱水死亡。该菌能产生强烈的α型内毒素,具有坏死、溶血和致死作用,有较强的毒性。介绍了兔魏氏梭菌病的发病情况、临床症状、剖检变化、实验室诊断、治疗及预防措施,以期为防治该病提供参考。     

兔魏氏梭菌病的诊治报告

兔魏氏梭菌病是由A型魏氏梭菌及其毒素引起兔的一种以消化道为主的全身性疾病,其特征是患兔水样腹泻和脱水死亡。该菌能产生强烈的α型内毒素,具有坏死、溶血和致死作用,有较强的毒性。介绍了兔魏氏梭菌病的发病情况、临床症状、剖检变化、实验室诊断、治疗及预防措施,以期为防治该病提供参考。     

兔球虫与魏氏梭菌混合感染的诊疗报告

兔球虫病是由艾美耳属球虫引起的原虫病,兔魏氏梭菌病是由A型魏氏梭菌产生外毒素所引起的兔肠毒血症,兔球虫病和魏氏梭菌病的发生都对幼兔产生严重危害,混合感染使病情更加复杂化,病死率高。现将某养殖户兔球虫和魏氏梭菌混合感染病例诊治情况报告如下。     

魏氏梭菌病诊断方法研究进展

魏氏梭菌病是由魏氏梭菌引起的,可感染多种动物,以导致犊牛肠毒血症、绵羊羔痢疾、仔猪坏死性肠炎以及兔肠炎等为主要特征的一种重要的人兽共患传染病.该菌通常感染2月龄～10月龄且膘情较好的牛、羊,在其消化道产生大量原毒素,经胰蛋白酶激活变为毒素,从而进入血液,引发的疾病发生非常突然,与家畜"猝死症"有密切联系.病理变化以全身实质器官出血为突出特征,反刍动物以瓣胃、肠管最为明显.目前,已成功研制出浓缩氢氧化铝灭活苗、类毒素疫苗来控制此病.文章综述了近年来针对魏氏梭菌分型,病原、毒素及抗毒素的免疫学和分子生物学等方面诊断技术研究进展.     

牛羊乳房炎中西兽医防治

在牛羊养殖实践中,疾病是影响养殖效益的重要因素,总结牛羊养殖中的疾病种类,并就疾病防治进行研究有突出的现实意义。牛羊乳房炎是牛羊养殖中的常见疾病,对牛羊乳产量和质量有显著影响,在养殖中必须要关注此病防治。该文对牛羊乳房炎的发病原因、发病特点和规律进行总结,并就该疾病的中西兽医防治对策进行分析与讨论。     

牛魏氏梭菌病概述

魏氏梭菌(Clostridium welchii),又称产气荚膜梭菌(Clostridium perfringens),是引起牛的猝死病的主要病原,对养牛业的危害极大。本文简要介绍了牛魏氏梭菌病的病原、流行病学、临床症状、病理变化、诊断和防制。     

Observations on the pathogenicity for sheep and goats and the transmissibility of the strain of virus isolated during the rinderpest outbreak in Sri Lanka in 1987

The pathogenicity for sheep and goats of the virus strain that caused acute rinderpest in cattle and domestic buffalo in Sri Lanka after an interval of over 40 years has been examined. The results show that it can cause overt clinical disease in goats, but only mild or unapparent infection in sheep. The disease was transmitted from infected sheep to in-contact susceptible sheep and calves.     

吉林省黄牛“猝死症”的病因学研究

１９９４年以来，对吉林省黄牛“猝死症”的病因进行了多方面的研究，包括细菌学检验、病毒学检验、人工感染试验、毒物检验、牛毛硒元素分析及病尸病理形态学观察。结果表明，Ａ型魏氏梭菌是主要病原菌，其他细菌有协同作用；牛冠状病毒或粘膜病病毒感染、缺硒等为本病的诱因     

The relation between the rabbit potency test and the response of sheep to sheep clostridial vaccines.

Six commercially available clostridial vaccines comprising one oil-emulsion, two alum-precipitated and three aluminum hydroxide adjuvanted preparations, each containing between two and seven antigenic components, were administered to groups of 10 rabbits and eight sheep in accordance with manufacturers' recommendations. Serum antitoxic values to Cl welchii beta, Cl welchii epsilon, Cl septicum, Cl oedematins and Cl tetani toxins were determined 14 days after completion of each vaccination course. The overall pattern of mean antitoxic values was found to be similar in sheep and rabbits, a vaccine eliciting a comparatively high antibody titre to any given antigen component in sheep also inducing a comparatively high titre in the corresponding group of rabbits. Similarly, comparatively poor responses in sheep were associated with poor responses in rabbits. The degree of variation in response within groups of animals was greater in sheep than in rabbits for all five antigenic components assayed. Sheep consistently developed higher titres than rabbits to Cl oedematins component but consistently lower titres to both Cl welchii beta and epsilon components irrespective of the type of vaccine used. The response of both species to Cl tetani antigen was similar in terms of serum antitoxic values. It was concluded that rabbits provide a suitable model for the assessment of potency of sheep clostridial vaccines.     

多雨年份牛羊主要寄生虫病综合防制措施

由于今年我省降雨量偏多,部分地区已发生洪涝灾害,极易引发牛羊主要寄生虫病的暴发流行。为防止寄生虫病暴发造成重大经济损失,本文详细阐述了阻断牛羊主要寄生虫病传播的关键因素,并针对历年危害严重的东毕吸虫、肝片吸虫、胃肠道线虫和疥癣等几种主要寄生虫病的流行病学特点提出了综合防制措施,以期降低牛、羊主要寄生虫病的发生,提高牛、羊养殖业的经济效益。     

No evidence for involvement of sheep in the epidemiology of cattle virulent epizootic hemorrhagic disease virus

Epizootic hemorrhagic disease virus (EHDV) is an Orbivirus. While not previously considered as an important disease in cattle, several EHDV serotypes (EHDV-6 and 7) have recently been implicated in disease outbreaks. The involvement of sheep in the epidemiology of EHDV is still not understood. In this study we compared the prevalence of antibodies to EHDV and bluetongue virus (BTV) in sheep to their prevalence in cattle after an outbreak of EHDV that occurred in Israel during 2006. Sixty-six sheep and lambs scattered in seven herds were compared to 114 cows and calves scattered in 13 dairy cattle herds, matched to the sheep herds by location. While antibody prevalence to EHDV was high in cattle (35.2% within the outbreak zone) no evidence of exposure to EHDV was found in sheep (p<0.0001). Antibodies to BTV were apparent in both cattle and sheep though in the former it was significantly higher (63.2%, 16.7% respectively, p<0.0001), suggesting higher exposure of cattle to biting Culicoides midges. Taken together, these results imply that sheep have a negligible role in the epidemiology of EHDV.     

鹿肠毒血症综合防制措施

鹿肠毒血症是养鹿业危害较大的一种传染病 ,为有效防制该病 ,本文对近年来鹿肠毒血症 (魏氏梭菌病 )的病原、流行病学、诊断和防制等方面作了详细介绍。