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1.
采用间接血凝试验,对北京地区11个区县未用过猪传染性胸膜肺炎疫苗的部分规模化猪场的1 980份血清样品,进行了猪传染性胸膜肺炎感染抗体检测.结果显示,猪传染性胸膜肺炎总阳性率为25.35%,其中断奶仔猪阳性率为17.68%,育肥猪阳性率为33.03%,育肥猪的感染阳性率高于断奶仔猪,19个猪场中有13个为猪传染性胸膜肺炎阳性猪场;猪传染性胸膜肺炎在冬春季节的感染率较高,1月～3月的阳性率高于4月～6月. 相似文献
2.
检测猪蓝耳病抗体血清1552份、猪瘟抗体血清2180份、猪圆环病毒抗体血清454份、H1N1猪流感抗体血清462份、猪肺炎支原体抗体血清488份、猪放线杆菌胸膜肺炎抗体血清116份.结果表明,规模猪场猪蓝耳病抗体阳性率较高,母猪达92%,肉猪达82%,小规模自繁自育场为30%,发病隐患较大;猪瘟抗体检测,规模猪场母猪抗体阳性率达95%,其余均在60%以下(国家规定抗体合格率≥70%),发病隐患较大;圆环病毒抗体检测,无论规模场或自繁自育场,阳性率均在60%以上.另外,猪流感、肺炎等症小规模猪场感染较为严重;胸膜肺炎则规模猪场感染较为严重. 相似文献
3.
为了解海南省规模猪场猪传染性胸膜肺炎(PCP)的感染情况,采集海南省8个市县16个不同规模猪场血清样品1 286份,用ELISA方法对猪胸膜肺炎放线杆菌(APP)ApxⅣ抗体进行检测,分析APP的感染情况。结果显示,1 286份猪血清样品共检出阳性样品436份,抗体阳性率为33.90%。其中,检测母猪血清326份,抗体阳性率为47.85%;检测哺乳仔猪血清324份,抗体阳性率为37.65%;检测保育猪血清316份,抗体阳性率为18.99%;检测育肥猪血清320份,抗体阳性率为30.63%。8个市县均有APP感染,其中文昌市APP抗体阳性率最高;不同规模猪场均有APP感染,其中中型规模猪场APP抗体阳性率最高;不同品种猪均有APP感染,其中杜长陆三元杂猪APP抗体阳性率最高。说明PCP在海南省部分规模猪场中普遍存在,对猪场进行PCP的控制是十分必要的。 相似文献
4.
采用猪传染性胸膜肺炎间接血凝(IHA)试验,对来自青海省3个规模化猪场的209份血清,进行了猪传染性胸膜肺炎血清抗体检查。结果,共检出119份阳性血清,阳性率为56.94%,表明青海省部分猪场中存在猪胸膜肺炎放线杆菌的感染。 相似文献
5.
为了解天津部分猪场副猪嗜血杆菌病(HPs)和猪传染性胸膜肺炎(PCP)的流行情况,利用间接血凝试验对采自9个规模猪场的178份猪血清样品进行副猪嗜血杆菌抗体检测,对采自8个规模猪场的166份猪血清样品进行猪传染性胸膜肺炎放线杆菌抗体检测。结果表明:副猪嗜血杆菌阳性率为18.54%(33/178),其中断奶仔猪和保育阶段猪阳性率为23.58%(25/106);猪传染性胸膜肺炎的阳性率为21.08%(35/166),其中断奶仔猪阳性率为20.93%(9/43),育肥猪阳性率为27.66%(13/47),种猪阳性率为21.62%(8/37)。说明天津地区部分猪场的副猪嗜血杆菌病和猪传染性胸膜肺炎呈地方性流行。 相似文献
6.
为初步了解我国上海市及周边部分地区猪传染性胸膜肺炎放线杆菌(Actinobacillus pleuropneumoiae,APP)的感染情况,对2015~2016年间采集于上海市、江苏省、江西省以及浙江省部分地区的1031份猪血清进行胸膜肺炎放线杆菌感染情况检测。结果显示,上海市及周边地区部分规模化猪场猪群中APP抗体总阳性率为27.06%,其中APP抗体阳性率江西省(38.08%)、江苏省(33.09%)和浙江省(25.21%)均高于上海市(11.20%);种猪(37.74%)高于哺乳仔猪(33.16%)和育肥猪(25.96%)以及保育猪(14.68%);APP抗体水平夏季(40.25%)高于冬季(25.00%)、春季(28.21%)和秋季(15.29%);小型猪场(42.11%)高于中型(24.86%)和大型猪场(17.97%)中APP抗体阳性率。统计分析显示,APP抗体阴、阳性与地区、猪群的生长阶段、生长季节以及猪场规模有关(P0.001)。检测结果表明,我国上海市及周边地区猪群中胸膜肺炎放线杆菌感染较为普遍。本研究结果为我国猪传染性胸膜肺炎(porcine contagious pleuropneumonia,PCP)的防控以及净化工作提供了一定的数据支持。 相似文献
7.
对本实验室2011年受理检测的92个规模化和散养猪场猪瘟、口蹄疫等血清学监测和流行病学调查信息分析,结果表明,猪瘟平均免疫抗体合格率为76.86%,口蹄疫免疫抗体合格率为60.82%,猪伪狂犬病免疫抗体合格率为51.75%,猪繁殖与呼吸综合征免疫抗体合格率为55.52%。结合临床诊断及实验室检测,部分猪场存在胸膜肺炎放线杆菌、猪圆环病毒、链球菌、副猪嗜血杆菌等感染,胸膜肺炎放线杆菌抗体阳性率为48.10%,猪圆环病毒抗体阳性率为53.21%,链球菌抗体阳性率为48.89%,副猪嗜血杆菌抗体阳性率为25.58%。 相似文献
8.
为了调查猪传染性胸膜肺炎在我区集约化猪场的流行情况,我们采用血清学方法于2009年11月对本区19个集约化猪场未免疫猪传染性胸膜肺炎疫苗的哺乳仔猪和成年种猪进行抽样调查,380份血清样品用间接ELISA对猪传染性胸膜肺炎放线杆菌ApxIV蛋白进行抗体检测。结果表明,血清样品阳性率为28．95％,其中哺乳仔猪和成年种（母）猪抗体阳性率分别为15．79％和42．22％。 相似文献
9.
采用正向间接血凝(IHA)试验对来自贵州省7个地区19个县(市)35个点的449份血清(随机采集)进行了血清抗体检查。结果显示,猪传染性胸膜肺炎感染率为10%~90%,平均阳性率为38.5%,最高抗体滴度为1∶256(占感染猪的1.2%),成年猪比仔猪感染率高,散养猪比猪场感染率高,被抽检地区均有猪传染性胸膜肺炎感染。 相似文献
10.
为了解云南省宣威市某规模化猪场育肥猪发生大量死亡的原因,试验采用临床症状观察、剖检病变、细菌分离培养、ELISA和PCR/RT-PCR方法进行检测,并对所分离的细菌进行形态观察、生化鉴定和药敏试验。结果表明:所分离的细菌形态特征及生化特性与猪胸膜肺炎放线杆菌一致,分离菌对氟苯尼考和卡那霉素高度敏感。RT-PCR法检出猪繁殖与呼吸综合征病毒特异性条带,判为阳性;样品的猪繁殖与呼吸综合征病毒抗体阳性率为61%(11/18)。PCR法检出胸膜肺炎放线杆菌,抗体阳性率为78%(14/18)。说明该猪场猪大量死亡的原因为猪繁殖与呼吸综合征和传染性胸膜肺炎混合感染。 相似文献
11.
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
13.
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
15.
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
16.
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
17.
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
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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