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为了解近年来羊传染性脓疱病在吉林省的流行情况,本试验采用PCR方法对2006—2010年间采自吉林省9个不同市县85个养羊户疑似羊传染性脓疱病毒(ORFV)感染的628份痂皮样本(背部、乳房、四肢以及尾根等部位皮肤)进行羊传染性脓疱病毒核酸的检测,在各市县不同年龄不同品种羊的皮肤痂皮样本中均检测到一定程度的ORFV,平均阳性率为24.36%(153/628),其中以1~6月龄羔羊的阳性检出率最高。应用间接ELISA方法对同期采集自上述地区羊群中的2160份血清样本进行ORFV抗体检测,其中有852份呈现0RFV抗体阳性反应,平均阳性率为39.44%(852/2160)。以上结果表明,ORFV在吉林省大部分地区羊群中的感染已经非常普遍。 相似文献
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<正>羊传染性脓疱病,也叫羊口疮,主要是由羊口疮病毒引起的一种传染性疾病,在山羊和绵羊身上都可发生。该病状的主要是唇、鼻、眼睑、乳房、四肢皮肤及口腔黏膜发生丘疹、水疱、脓疱和痂皮等特征。羊口疮主要发生在一岁以内的羔羊,其中3~6月龄羔羊是最易患病羊群,成年羊也可感染,但发病较少,发病率 相似文献
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巴旭菲 《畜牧兽医科技信息》2019,(5):51-51
羊口疮病是由传染性脓疱病毒引起,大多数病毒都是集中于脓疱内容物与痂皮当中,此类病毒对外部环境具有较强的抵抗力。不同品种以及年龄的羊群易感性无差异性。养殖过程中羊口疮疾病传染性较强,容易出现死亡,所以当前对此类疾病要强化防治措施。 相似文献
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<正>羊传染性脓疱又称羊传染性脓疱性皮炎、羊接触传染性口炎,俗称"羊口疮"是由羊传染性脓疱病毒(简称CEV)感染所致,是一种高度接触性、低死亡率的传染性疾病。该疾病的特征在于口腔和嘴唇的皮肤和黏膜形成丘疹、疱疹、溃疡和结成疣状厚痂。疱疹内容物和痂皮中的病毒可持续传播几个月[1]。所有养羊国家都可能会爆发,各种阶段的羊都会受到影响,呈群发性流行。羊痘病毒属分为绵羊痘和山羊痘,由羊痘病毒(简称cpv)引起所致,以绵羊痘病毒为代表种,绵羊痘病毒又称 相似文献
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为掌握青海省大通种牛场和海晏县牦牛病毒性腹泻/黏膜病、传染性鼻气管炎的感染和流行情况,2010年3月至5月在大通种牛场和海晏地区采集252份牦牛血清样品,应用定量酶联免疫吸附试验(ELISA)对牦牛病毒性腹泻/黏膜病和传染性鼻气管炎的进行了血清抗体检测。结果显示,大通种牛场牦牛群中牛病毒性腹泻/黏膜病阳性率为23.42%,传染性鼻气管炎阳性率为65.45%;海晏县牦牛群中牛病毒性腹泻/黏膜病阳性率为19.86%,传染性鼻气管炎阳性率为4.96%。 相似文献
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利用重组的微小隐孢子虫(Cryptosporidium parvum)P23蛋白作为ELISA诊断抗原,对来自青海地区的部分放牧犬和宠物藏獒犬进行隐孢子虫特异性抗体的检测。结果在497份血清中检出150份阳性血清,阳性率为30.18%。其中放牧犬阳性率为32.77%,藏獒的阳性率为37.95%,宠物犬的阳性率为10.42%。 相似文献
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内蒙古地区奶牛病毒性腹泻/黏膜病血清流行病学调查 《畜牧与饲料科学》2014,35(3):106-106
应用ELLSA试验对来自内蒙古地区17个大﹑中﹑小型奶牛场的2391份牛血清样品进行了牛病毒性腹泻/黏膜病抗体检测,并对其中222份抗体阴性牛应用ELISA试验进行牛病毒性腹泻/黏膜病的抗原检测。结果表明:17个奶牛场均检出BVDV抗体阳性,共检出阳性血清2125份,阳性率最高达100%,最低为46.8%,平均为88.9%。对14个奶牛场进行了BVDV抗原检测,在5个奶牛场检出BVDV抗原阳性,阳性率为3.6%(8/222)。表明内蒙古地区奶牛场普遍存在牛病毒性腹泻/黏膜病感染,感染率较高,并且牛群中存在持续性感染(PI)牛。 相似文献
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内蒙古地区猪圆环病毒Ⅱ型感染的血清学调查 总被引:1,自引:0,他引:1
本实验应用酶联免疫吸附实验(ELIsA)方法对内蒙古地区部分未经PCV-2免疫的猪场猪只780份血样进行抗体阳性检测,结果显示,不同猪场均有PCV-2感染,PCV-2抗体平均阳性率为38.6%(301/780),经产母猪阳性率为38.3%(51/133),后备母猪阳性率为38.7%(46/119),种公猪阳性感染率为23.5%(8/34),哺乳仔猪阳性率为42.8%(80/187),断奶仔猪阳性率为40.9%(70/171),育肥猪阳性率为33.8%(46/136)。结果表明,内蒙古地区养猪场普遍存在猪圆环病毒II型(pcv-2)感染? 相似文献
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Orf virus (ORFV) causes contagious skin disease that mainly affects sheep and goats with zoonotic potential. However, there is not enough information about the association between ORFV and occurrence of skin disease in cattle. The present study describes outbreaks of ORFV infection in cattle in different provinces that are located in the Aegean, Central Anatolian and Mediterranean regions of Turkey. During the months of June and August 2017, vesicular fluid and scab samples were collected from cattle which had proliferative skin lesions. First, presence of lumpy skin disease virus (LSDV) and bovine herpesvirus 2 (BoHV-2, known as the causative agent of pseudo-lumpy skin disease) were investigated by real time PCR and PCR, respectively. Then, samples tested for the presence of parapoxviruses by PCR using primers specific to major envelope protein gene (B2L). Parapoxvirus DNA was detected in investigated samples whereas LSDV and BoHV-2 DNA were not detected. The analysis of the B2L gene sequences revealed that cattle were infected with ORFV. The isolates in the present study shared 100% sequence identity at the nucleotide and amino acid level when compared with previously characterised Turkish field ORFV isolates from goats in 2016. Results of the study show unusual infection of cattle with ORFV, and suggest that ORFV jumps the host species barrier from goats to cattle. 相似文献
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WANG Qiu-xia ZHU Xiang-ru YI Cheng-gong QIN Tao CHEN Su-juan PENG Da-xin XIA Tong-hai 《中国畜牧兽医》2017,44(4):950-958
The study was aimed to investigate prevalence of Orf virus (ORFV) in Jiangsu province in recent years and control Orf better. A total of 121 tissue samples were collected in some farms from 2013 to 2015 and subjected to PCR detection, viral isolation and phylogenetic analysis of B2L gene. Four samples were ORFV positive by PCR. The viruses were isolated by passaging in ovine fetal turbinate (OFTu) cells and MDBK cells, and were named as ORFV/Ovis/XZ/Jiangsu/2015/China, ORFV1/Ovis/DT/Jiangsu/2015/China, ORFV2/Ovis/DT/Jiangsu/2015/China and ORFV/Ovis/SL/Jiangsu/2015/China,respectively. The B2L gene was amplified and sequenced for the phylogenetic study. The nucleotide homology of these 4 strains was 98.5% to 100.0%. ORFV/Ovis/XZ/Jiangsu/2015/China, ORFV1/Ovis/DT/Jiangsu/2015/China and ORFV2/Ovis/DT/Jiangsu/2015/China, gathered into a cluster with SC-JY, GX-YB, JS-FX isolates and the nucleic acid homology of these strains was 97.8% to 100%. ORFV/Ovis/SL/Jiangsu/2015/China gathered into a cluster with LiaoNing, HuB and Gansu isolates, the nucleic acid homology was 98.8% to 98.9%. The nucleic acid homologies of 4 strains and ORFV strain China vaccine was 96.8% to 98.1%. The result showed that the ORFVs in Jiangsu province might be from different source. For controlling the spreading of this virus, it was necessary to carry out deep epidemiological survey in Jiangsu province. 相似文献
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为了解江苏省近年来羊口疮病毒(Orf virus,ORFV)的流行情况,更好地控制江苏地区的羊口疮病,2013~2015年采集江苏部分地区羊口疮疑似病料121份,进行病毒分离鉴定及其B2L基因的遗传进化分析。结果显示,样品中ORFV PCR检测阳性4份,用胎羊鼻甲骨细胞(OFTu)和MDBK细胞进行病毒分离,分离到4株病毒。这4株病毒分别命名为ORFV/Ovis/XZ/Jiangsu/2015/China、ORFV1/Ovis/DT/Jiangsu/2015/China、ORFV2/Ovis/DT/Jiangsu/2015/China和ORFV/Ovis/SL/Jiangsu/2015/China。扩增ORFV的B2L基因全长并绘制遗传进化树。B2L基因序列分析显示,4株分离株之间的核酸同源性为98.5%~100.0%。遗传进化树显示,ORFV/Ovis/XZ/Jiangsu/2015/China株、ORFV1/Ovis/DT/Jiangsu/2015/China株和ORFV2/Ovis/DT/Jiangsu/2015/China株与SC-JY、GX-YB、JS-FX株聚成一簇,核苷酸同源性为97.8%~100.0%。ORFV/Ovis/SL/Jiangsu/2015/China与LiaoNing、HuB、Gansu株亲缘关系接近,核苷酸同源性为98.8%~98.9%。4株分离株与中国疫苗株的核苷酸同源性为96.8%~98.1%。结果表明,江苏地区的ORFV来源可能不同,有必要开展更为深入的流行病学调查,为防控江苏地区的羊口疮奠定基础。 相似文献
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从青海省玉树、共和、格尔木、果洛、大通、祁连、德令哈、同德8个地区采集牛羊血清样品413份,应用琼脂免疫扩散法对蓝舌病进行了血清学调查。结果在被检的209份羊血清中,共检出阳性血清样品4份,平均阳性率为1.91%;而在被检的204份牛血清中则未检测到阳性样品。 相似文献