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1.
1猪病回顾自1996年由郭宝清等首次报道了我国的猪繁殖与呼吸综合征(PRRS,俗称猪蓝耳病)以来,到2000年,在短短几年中已有二十几个省市相继报道本病的发生和流行。2000年,我国又爆发了由圆环病毒2型(PCV2)为主要病原的仔猪断奶后多系统衰竭综合征(PMws)。  相似文献   

2.
2006年-2007年对济宁地区不同养殖场(户)猪“高热病”进行流行病学调查,通过细菌病原学检查,从表现出“高热病”症状的患猪体内主要分离到5种细菌。通过对分离株的病原形态学、培养特征、生化特性和致病性等方面进行传统鉴定,结果表明,引起猪“高热病”的细菌性病原主要为大肠埃希菌(64.4%)、沙门菌(61.6%)、巴氏杆菌(34.9%)、猪丹毒杆菌(30.8%)和链球菌(34.2%),并且多呈混合感染。通过药敏试验测定,结果显示,多数细菌对环丙沙星、头孢噻肟有较高的敏感性,而对复合磺胺、青霉素等有不同程度的耐药性。  相似文献   

3.
猪布鲁氏菌病病原分离及种型鉴定   总被引:2,自引:2,他引:0  
猪布鲁氏菌病病原分离及种型鉴定易奇珍,左婉顺,周国基,林琼华,刘琪,郑列丰,韦庆昌,陈泽祥,赖家凯,高东升(广西兽医研究所,南宁530001)我区猪布鲁氏菌病病原子1954年在桂林良丰农场分离出菌株,1981年以来,我区结合布病疫区面上综防工作,采集...  相似文献   

4.
一起猪无名高热综合征病例的病原分离鉴定   总被引:1,自引:0,他引:1  
某猪场发生以体温升高为特征的病例。笔者对其送检的内脏样本进行了病原学检测和病原的分离与鉴定,结果从其内脏样本中检测和分离到多种病原。从其内脏组织中分离到2株细菌,通过细菌学方法鉴定,一株为副猪嗜血杆菌,另一株为猪链球菌;将送检样本接种到Marc 145细胞,能观察到细胞病变,收获的病毒液经PCR检测,为蓝耳病病毒阳性;将送检的样本接种SPF鸡胚,收获的鸡胚尿囊液有血凝性,血凝试验(HA)和血凝抑制试验(HI)鉴定为猪副黏病毒。  相似文献   

5.
2006年6月份以来,我国部分地区发了生猪“高热病”疫情,当时由于病因不明.而泛称为生猪无名高热或猪高热病综合征,该病的流行对养猪业造成了很大的损失。经过农业部组织有关专家开展流行病学调查、病原分离鉴定、动物试验等科技攻关,证实疫情主要是由高致病性猪蓝耳病引起的(农医发[2007]10号文件,编者注)。[编者按]  相似文献   

6.
2006年夏秋之季,我国部分地区发生猪“高热病”疫情,经多家科研机构开展流行病学调查、病原分离鉴定、动物试验等科技攻关,发现了高致病性猪繁殖与呼吸综合征(俗称蓝耳病)变异病毒,证实疫情主要是由高致病性猪蓝耳病引起的。  相似文献   

7.
猪繁殖与呼吸综合征(Porcine reproductive and respiratory syndrome, PRRS)于1987年在美国北卡罗纳州首先发现,随后在加拿大(1988年)、德国(1990年)、英国(1991年)相继发生此病。当时由于病原不清,曾被命名为“猪神秘病”、“猪蓝耳病“,1992年国际兽疫局(OIE)将此病命名为猪繁殖与呼吸综合征。Wensvoot等于1991年分离并鉴定了该病病原,病毒是单链RNA病毒,属于动脉炎病毒科(Arteriviridae)动脉炎病毒属。世界上许多国家都发生过此病的流行,已引起国际上的广泛关注。我国大陆由郭宝清等于1996年首次报道暴发该病,并分离到PRRS病毒。近年来,全国已有10多个省市报道过该病的流行,给养猪业造成了重大的经济损失。  相似文献   

8.
猪传染性胸膜肺炎的诊断和疫苗研究进展   总被引:17,自引:0,他引:17  
猪传染性胸膜肺炎 (Porcinepleuropneumonia)是由胸膜肺炎放线杆菌 (Actinobacilluspleuropneumoniae,APP )引起以肺出血、坏死和纤维素性渗出为主要病变的接触性传染病 ,该病由Pattison等 1 95 7年首次报道。在欧洲、美国、加拿大、日本、韩国、澳大利亚等地都曾经发生过此病[1] 。我国近年来大部分地区都有对该病的报道 ,哈尔滨兽医研究所于 1 987年发现临诊病例 ,并通过病原分离鉴定、人工复制病变及血清学检查等 ,证明APP在我国的存在和流行。杨旭夫于 1 990年对此进行了首次报道[2 ] 。辽宁高林等通过调查后认为 ,近年来APP在我国…  相似文献   

9.
猪"高热病"——高致病性猪蓝耳病的防治   总被引:1,自引:0,他引:1  
2006年夏秋之季,我国部分地区发生猪“高热病”疫情,对养猪业造成很大损失。农业部通过组织有关单位开展流行病学调查、病原分离鉴定、动物试验等科技攻关,发现了高致病性蓝耳病变异病毒(猪繁殖与呼吸综合征变异病毒),证实疫情主要是由高致病性猪蓝耳病引起的。  相似文献   

10.
南宁市鸭传染性浆膜炎病原的分离与鉴定   总被引:3,自引:0,他引:3  
鸭传染性浆膜炎又称鸭疫里默氏杆菌病 ,由鸭疫里默氏杆菌感染引起 ,是鸭的一种接触性传染病。据记载 ,此病于 1 93 2年在美国纽约首次发现。我国自 1 982年郭玉璞在北京首次确定此病以来 ,全国许多地区也相继报导发生本病。据广西冯加明等报导 ,广西二十世纪 80年代后期确诊此病。此病已成为严重危害我市养鸭业的疾病之一。本病的肉眼病变及病原形态和大肠杆菌病很相似 ,很容易误诊为大肠杆菌病。因此确诊本病必须进行病原分离鉴定。笔者曾从本地疑似鸭疫里默氏杆菌病病鸭体内分离出 1 2株菌株 ,分别做了分离培养、生化试验、动物试验、药敏…  相似文献   

11.
The objective of this study was to compare the application of different in vitro and in situ methods in empirical and mechanistic predictions of in vivo OM digestibility (OMD) and their associations to near-infrared reflectance spectroscopy spectra for a variety of forages. Apparent in vivo OMD of silages made from alfalfa (n = 2), corn (n = 9), corn stover (n = 2), grass (n = 11), whole crops of wheat and barley (n = 8) and red clover (n = 7), and fresh alfalfa (n = 1), grass hays (n = 5), and wheat straws (n = 5) had previously been determined in sheep. Concentrations of indigestible NDF (iNDF) in all forage samples were determined by a 288-h ruminal in situ incubation. Gas production of isolated forage NDF was measured by in vitro incubations for 72 h. In vitro pepsin-cellulase OM solubility (OMS) of the forages was determined by a 2-step gravimetric digestion method. Samples were also subjected to a 2-step determination of in vitro OMD based on buffered rumen fluid and pepsin. Further, rumen fluid digestible OM was determined from a single 96-h incubation at 38°C. Digestibility of OM from the in situ and the in vitro incubations was calculated according to published empirical equations, which were either forage specific or general (1 equation for all forages) within method. Indigestible NDF was also used in a mechanistic model to predict OMD. Predictions of OMD were evaluated by residual analysis using the GLM procedure in SAS. In vitro OMS in a general prediction equation of OMD did not display a significant forage-type effect on the residuals (observed - predicted OMD; P = 0.10). Predictions of OMD within forage types were consistent between iNDF and the 2-step in vitro method based on rumen fluid. Root mean square error of OMD was least (0.032) when the prediction was based on a general forage equation of OMS. However, regenerating a simple regression for iNDF by omitting alfalfa and wheat straw reduced the root mean square error of OMD to 0.025. Indigestible NDF in a general forage equation predicted OMD without any bias (P ≥ 0.16), and root mean square error of prediction was smallest among all methods when alfalfa and wheat straw samples were excluded. Our study suggests that compared with the in vitro laboratory methods, iNDF used in forage-specific equations will improve overall predictions of forage in vivo OMD. The in vitro and in situ methods performed equally well in calibrations of iNDF or OMD by near-infrared reflectance spectroscopy.  相似文献   

12.
大庆市羊东毕吸虫病流行病学调查   总被引:1,自引:0,他引:1  
对大庆市羊东毕吸虫病的流行病学进行了调查研究。结果表明,大庆有3种东毕吸虫,即程氏东毕吸虫(O.cheni)、土耳其斯坦东毕吸虫(O.turkestanica)和土耳斯坦东毕吸虫结节变种(O.turkestanican var.thuberculata);中间宿主螺类有1种,即卵萝卜螺;东毕吸虫病在大庆分布很广,所调查的4区2县均有发生,羊东毕吸虫平均感染率分别为50.33%,平均死亡率为21.12%,大庆羊急性病例发病时间为8月上旬至10月下旬,慢性病例为11月上旬至翌年2月中旬。  相似文献   

13.
中国圈养野生动物疫苗使用调查   总被引:1,自引:0,他引:1  
2005年对中国动物园协会单位中的18家动物园饲养野生动物疫苗免疫情况进行调查。受调查动物园在野生动物疫苗使用和动物种类方面具有一定的代表性。调查结果显示动物园动物现共使用18类36种疫苗,预防31种疫病。其中哺乳动物使用14类24种疫苗,预防24种疫病;禽类使用4类12种疫苗,预防7种疫病。使用范围最广的有禽流感、犬瘟热疫苗等、新城疫疫苗、猫瘟热疫苗等。共有24目58科动物接种疫苗,其中食肉动物类1目8科,食草动物类3目9科,杂食动物类2目3科,禽类18目38科。研究结果提示应加强动物园之间疫病信息交流、防疫资源的利用、疫病监测和研究,加大对动物园动物疫病的研究投入,逐步建立动物园动物统一的防疫规程。  相似文献   

14.
15.
Information gathered from cases of fowl cholera (FC) in commercial turkey flocks through case records, flock records, and telephone and mail surveys was used to estimate disease costs. The cost to the Georgia commercial turkey industry in 1986 from preventive measures, treatment of outbreaks, and production losses from the disease was estimated at $634,545. The cost of FC per kg of live production was estimated to be $0.015.  相似文献   

16.
猪伪狂犬病是由伪狂病病毒(Pseudorabies virus PRV)引起的急性传染病。其特征是成年猪常为隐性感染,可有流产、死胎、呼吸系统症状,新生仔猪除神经症状外还可侵害消化系统,并伴大批死亡。本病已经给全世界的养猪业造成严重的损失,我国许多地区已报道该病。为进一步探讨该病的控制、净化措施,我们对12个养猪场共856分血清采用美国嗍公司的ELISA试剂盒进行了抗体检测。  相似文献   

17.
In 5 cases of glaucoma (2 from trauma, 2 from narrowed drainage angles, 1 secondary to lens extraction), cyclocryotherapy was used to control intraocular pressure. In all cases the intraocular pressure decreased, with the usual result being a cosmetic and painless but blind eye.  相似文献   

18.
In 2007, 678 pigs of all age groups out of 347 different farms from Lower Saxony and Northrhine-Westphalia and 86 persons occupationally exposed to pigs were investigated for their nasal colonisation with methicillin-resistant Staphylococcus areus (MRSA) by the Field Station for Epidemiology of the University of Veterinary Medicine Hannover and the Robert Koch-Institute. At the individual animal level, a frequency of positive results of 13% (n = 85 positive animals) and at the herd level, a frequency of positive results of 18% (n = 62 positive herds) were found. All isolates were assigned to the Multilocus Sequence Typing Type ST398. Within MRSA-positive herds, there were more MRSA-negative than MRSA-positive animals. Among the occupationally exposed persons (veterinarians, laboratory personnel and meat inspection personnel), 20 persons (23%) showed a nasal colonisation with MRSA ST398. A quite strong association between the intensity of the contact to pigs with the frequency of nasal colonisation in the occupationally exposed persons was detected. None of the animals or the humans nasally colonised by MRSA ST398 showed any clinical symptoms of a staphylococcal infection. Conclusions are drawn on the herd and intra-herd prevalence of the nasal colonisation of pigs with MRSA ST398 in pigs, but especially on which questions need to be addressed by further research.  相似文献   

19.
为了解西藏拉萨市家禽禽流感抗体水平,2017年8月随机选择免疫过H5禽流感疫苗的8个规模养殖场、2个散养户、3个活禽交易市场,共13个群体,采集1 041份家禽血清样品进行H5、H7、H9亚型禽流感HI抗体检测。结果显示:H5亚型禽流感免疫抗体合格率为45.73%,H7、H9亚型抗体阳性率分别为21.13%、52.64%;养殖场、散养户和活禽交易市场的不同亚型抗体水平存在较大差异,规模化养殖场的H7亚型抗体阳性率最高(29.92%),活禽市场的H5、H9亚型阳性率最高(78.16%、79.31%),散养户的所有亚型抗体阳性率均最低。结果表明,拉萨市H5亚型禽流感疫苗免疫效果较差,特别是散养户,疫病发生风险较高,H7、H9亚型疑似自然感染率较高,应进一步查明原因,及时采取相应的措施,防止疫情发生。  相似文献   

20.
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