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1.
为了解贵州省羊小反刍兽疫(peste des petits ruminants,PPR)的免疫及病原感染情况,2017—2020年,在全省累计采集2 148个场点的85 145份血清学样品,487个场点的24 777份病原学样品,分别进行PPR免疫抗体和病毒核酸检测,并对检测结果进行统计分析。结果显示:2017—2020年贵州省PPR平均个体免疫合格率为85.28%,群体合格率为90.18%,个体和群体免疫合格率均呈逐年上升趋势;不同场点、不同区域的个体免疫合格率略有差别,但均达到了农业农村部要求的70%以上的标准;仅2017年在安顺市一商品代养殖场检出病原阳性样品,其他年份和区域均未检出。结果表明,贵州省PPR免疫及防疫效果较好,疫病发生风险较低,为退出PPR强制免疫,实现消灭计划目标奠定了基础。但应继续加强PPR强制免疫、监测,加大羊群调运监管力度,全面提升PPR防控能力。 相似文献
2.
为全面掌握云南省玉溪市小反刍兽疫（PPR）的病原分布和羊群免疫效果，根据2021年玉溪市PPR专项监测方案，在全市开展PPR监测和流行病学调查。采用多阶段调查的方法，从全市9个县区采集免疫羊血清样品1 631份、眼鼻棉拭子样品6 438份，分别使用阻断ELISA和实时荧光RT-PCR检测方法，进行PPR免疫抗体检测和病毒核酸检测。结果显示：2021年玉溪市PPR群体免疫合格率为82.98%，个体免疫合格率为83.62%，未检测到病原学阳性样品；不同养殖区域、不同性别的免疫抗体合格率均有统计学差异（P＜0.05），而不同养殖类型、不同企业疫苗的免疫抗体合格率差异均不显著（P＞0.05）。结果表明：玉溪市羊PPR整体免疫效果较好，所用PPR疫苗免疫原性较好，免疫程序合理，但部分县区的免疫合格率较低，因此应继续加强PPR的强制免疫及补免工作；在未引入新疫源的前提下，疫情发生风险较低，但应加大羊只引种检疫和调运监管力度。本次监测评估了玉溪市的PPR总体防控状况，为尽快实现消灭PPR的目标提供了数据支撑。 相似文献
3.
为了解广西玉林市牛羊口蹄疫(FMD)和小反刍兽疫(PPR)免疫情况,2017—2019年采用酶联免疫吸附试验(ELISA),对从玉林市7个县(市、区)234个种畜场、规模养殖场和散养户采集2244份羊血清和922份牛血清样本进行O型、A型和亚洲I型FMD以及PPR免疫抗体检测,并比较不同年份、不同地区的免疫抗体水平。结果显示:2017—2019年,玉林市牛羊O型FMD抗体场群及个体合格率基本保持在70%以上,但部分地区的抗体合格率较低(P<0.05);亚洲I型FMD抗体合格率2017年偏低,但2018年后直线上升至80%以上;A型FMD抗体合格率普遍较低,均不足70%。PPR免疫合格率逐年增长,均保持在70%以上,且无显著地区差异(P>0.05)。结果表明,广西玉林市牛羊O型、亚洲I型FMD和羊PPR的整体免疫效果较好,但A型FMD免疫效果较差,且FMD免疫效果存在一定的地区不均衡性。因此,玉林市应根据各地区实际情况,持续加强FMD、PPR免疫和监测,确保各地区牛羊处于较高的免疫保护水平。本调查为玉林市有效防控此类疫病提供了技术支持。 相似文献
4.
采用竞争ELISA方法对从重庆市30个区县的种羊场、商品代饲养场和散养户采集的62284份羊血清样品进行小反刍兽疫(PPR)抗体检测。结果显示:53062份血清抗体合格,个体合格率为85.19%,其中种羊场合格率为93.67(3020/3224),商品代饲养场合格率为86.59%(21179/24458),散养户合格率为83.41%(28863/34602),免疫合格率均高于农业部规定的70%的最低标准。监测结果表明,重庆市羊PPR的免疫效果总体比较理想,同时也说明所使用的PPR疫苗免疫原性较好。 相似文献
5.
为了准确评估阿克苏市2014年-2017年小反刍兽疫(PPR)的免疫效果,笔者采用酶联免疫吸附法(ELISA)对采自阿克苏市的486份羊血清进行了免疫抗体检测。结果表明,2014年-2017年从规模场、屠宰场、散养户采集的羊血清抗体总体合格率为75.9%,整体检测合格率均超过70%;散养免疫抗体合格率最高(为77.5%),屠宰场样品抗体合格率最低(为66.7%)。 相似文献
6.
本文报告应用C-ELISA方法监测小反刍兽疫免疫区山羊、绵羊和牦牛PPR免疫抗体的结果。结果显示:检测免疫山羊血清298份,阳性163份,阳性率54.70%;检测免疫绵羊血清588份,阳性140份,阳性率23.81%;累计检测免疫羊(山羊和绵羊)血清886份,阳性303份,阳性率34.20%;检测免疫区非免疫牦牛血清353份,阳性51份,阳性率14.45%。并对试验结果显示的免疫区羊免疫抗体阳性率偏低、山羊和绵羊免疫抗体阳性率差异大及免疫区接触牦牛PPR抗体呈阳性的检测结果进行了分析。 相似文献
7.
为了解镇远县2017-2019年羊小反刍兽疫免疫抗体情况,采集4个乡镇规模羊场及散养户羊血清样品311份,采用竞争ELISA方法进行小反刍兽疫免疫抗体检测。结果:311份羊血清样品中有255份合格,总体合格率为82%,达到农业农村部规定≥70%的标准要求,说明镇远县羊小反刍兽疫免疫效果总体情况良好。 相似文献
8.
为检验春防畜禽免疫效果,查找目前免疫工作中存在的问题,为开展疫病综合防控提供依据,利用酶联免疫吸附试验(ELISA)对采集的726份猪血清样品进行猪瘟(CSF)、高致病性猪蓝耳病(HP-PRRS)、O型口蹄疫(FMD)的抗体检测,对采集的135份羊血清样品进行O型、亚洲Ⅰ型FMD和小反刍兽疫(PPR)的抗体检测;利用血凝抑制试验(HI)对采集的933份鸡血清样品进行高致病性禽流感(HPAI)、新城疫(ND)的抗体检测。结果表明:HPAI、ND、HP-PRRS免疫效果最好,平均免疫抗体合格率基本达到100%;HP-PRRS平均免疫抗体合格率超过99%;PPR、CSF、猪FMD免疫效果较好,平均免疫抗体合格率分别为93.33%、88.84%、88.84%;羊FMD免疫效果良好,O型和亚洲Ⅰ型FMD平均免疫抗体合格率分别为80.00%和82.22%。说明常州市金坛区2015年度春防畜禽免疫情况总体良好,但在免疫程序、动物饲养管理以及免疫技术等方面仍需改进。 相似文献
9.
目的:掌握天水市羊小反刍兽疫免疫抗体水平和效果;方法:采用阻断ELISA方法,对2014~2015年采自85个养殖场(户)的1340份羊血清进行PPR抗体检测.结果:个体阳性率为79.25%,免疫合格养殖场(户)72个,合格率为84.71%.检测养殖场47个,场免疫合格率为91.49%,散养户38个,散养户免疫合格率为74.36%.结论:场户群体和个体免疫抗体合格率均达到农业部要求70%以上的标准要求. 相似文献
10.
为掌握伊吾县羊牛布鲁氏菌病(简称布病)的流行特点和净化效果,依据国家标准《动物布鲁氏菌病诊断技术》,用虎红平板凝集试验(RBT)初筛,试管凝集试验(SAT)确诊的方法,2017—2021年连续5年对伊吾县养殖场户所有牛羊采集血样进行布鲁氏菌抗体检测,共检测牛羊血清样品1040792份,检出阳性样品7005份,平均阳性率... 相似文献
11.
In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario. Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously. 相似文献
13.
In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%). Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada. 相似文献
14.
In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%). 相似文献
15.
In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection. 相似文献
17.
In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium. 相似文献
18.
In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated. Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively. 相似文献
19.
In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%). 相似文献
20.
In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%). Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada. 相似文献
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