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1.
为了解近年来河南省猪伪狂犬病（PR）流行情况，2017—2019年对河南省种猪场、商品代猪场、散养户和屠宰场，共1 454场次的44 059份猪血清进行了猪伪狂犬病病毒（PRV）gE抗体检测，对种猪场、商品代猪场、屠宰场和无害化处理厂，共807个场次的12 824份猪组织样品进行了病原学检测，并对检测结果进行了时间、空间和群间分布分析。结果显示：2017—2019年河南省PRV gE抗体个体阳性率为27.89%，场群阳性率为53.51%；病原个体阳性率为2.47%，场群阳性率为11.65%。2017年和2019年的PRV感染率较为接近，2018年较高；冬春季节和夏季PRV感染率较高（P＜0.05）；豫西、豫北和豫中地区PRV感染率明显高于豫东和豫南地区（P＜0.05）；屠宰场和商品代猪场PRV感染率明显高于种猪场和散养户（P＜0.05）。结果表明，河南省猪群PR流行具有一定的季节、区域和场群分布特点，可依据其流行特点，分区域、按场点，以种猪场为中心，分类指导、梯度推进全省PR净化工作。 相似文献
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为了解2019年河南省猪群猪繁殖与呼吸综合征（PRRS）免疫抗体水平和病原流行情况，对河南省3 231场次的108 070份猪血清和714场次的18 746份猪组织样品，分别进行免疫抗体和病原学检测，并按季节、区域和场点类别，对检测结果进行了统计分析。抗体检测结果显示：2019年河南省平均个体免疫合格率为83.53%，场群免疫合格率为90.75%；不同季节、不同区域和不同场群的抗体水平均在70%以上，但散养户（70.21%）水平偏低。病原检测结果显示：2019年河南省个体病原阳性率为0.99%，场群病原阳性率为4.06%；一年四季均有病原检出，且春季阳性率最高；豫北地区个体和场群的病原阳性率均最高，而豫西地区未检出病原；无害化处理厂和散养户的病原阳性率较高。结果表明：河南省猪群PRRS免疫效果良好，但应加强散养户猪群的免疫；病原具有一定的时间、空间和群间分布特征，可依据其分布特点和规律，分类指导防控，以种猪场为中心，梯度推进净化工作。 相似文献
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为了探究宁夏回族自治区羊布鲁氏菌病流行情况，找出布病流行的风险因素，利用血清学检测、病原学检测和问卷调查等3种方法，统计全区羊布病流行状况，并将问卷调查中涉及的风险因素通过logistics回归法进行分析。结果显示，宁夏地区2022年羊布鲁氏菌病的个体阳性率为8.67%，群体阳性率为43.15%，其中中卫市羊个体阳性率最高；规模场的阳性率高于散养户；羊患布鲁氏菌病的风险因素主要有“从外县交换或购入新畜”“运输羊饲料交通工具不消毒”和“近一年母羊流产或不孕”，应通过定期监测、制定合理的免疫程序、严格消毒、科普布病知识等方法来防控布病。 相似文献
5.
《养殖与饲料．饲料世界》2021,(10)
为了解河南省奶牛布病感染情况,本研究对2020年河南省未免疫牛群布病监测情况进行了调查和分析统计。对来自459场次的17 207份牛血清样品进行了布病抗体检测,检出布病感染抗体阳性场群8个,阳性样品19份,平均个体阳性率和场群阳性率分别为0.11%和1.74%。结果表明:存栏量小于500头养殖场户的布病个体阳性率和场群阳性率分别为0.08%和1.86%;存栏量介于500～3 000头奶牛场的个体阳性率和场群阳性率分别为0.16%和1.83%;存栏量大于3 000头的大规模奶牛场无布病阳性样品检出。8个阳性场群在河南省不同区域均有分布,其中豫中地区4个,豫东、豫西、豫南和豫北地区各1个。调查结果说明河南省奶牛布病感染情况具有一定的群间和空间分布特征,应依据不同地区和场群的流行特点制定相应的防控措施。 相似文献
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为了解湖南省长沙市布鲁氏菌病流行现状,对奶羊养殖场(户)和种羊场采用普查策略,对其他羊养殖场(户)采用两阶抽样策略,选择羊群并选定群体中个体,采集血样进行布鲁氏菌抗体检测。同时,通过问卷调查和查阅资料等方式,分析布鲁氏菌病感染和传播风险。结果显示:全市羊布鲁氏菌病表观场群流行率为1.54%(95%CI:0.42%~3.91%),表观个体流行率为0.60%(95%CI:0.43%~0.80%);4个阳性群集中分布于长沙县和宁乡县;和以往监测数据相比,长沙市的羊群布鲁氏菌病流行率和人间发病率均呈下降趋势,说明前期的防治策略取得积极成效。总体来说,长沙市布鲁氏菌病流行率较低,疫情处于稳定控制状态,因而可以分区域逐步实现全市布鲁氏菌病净化。 相似文献
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2020年,以规模牛场为调查对象,对来自168个场群的9295头活牛进行牛型结核菌素皮内变态反应试验,并按动物种类、存栏量规模和不同区域对结果进行分析,以期了解河南省牛群结核病感染情况。试验结果显示:河南省牛群结核病平均场群阳性率为9.52%,平均个体阳性率为0.79%;肉牛群体中未检出结核阳性个体,奶牛群体中结核场群阳性率和个体阳性率分别为10.74%和0.88%;存栏量≤500头的规模奶牛场场群阳性率和个体阳性率均为最高,分别为13.75%和1.30%,且个体阳性率和场群阳性率均随存栏量的上升呈下降趋势;豫西和豫北地区有结核阳性牛只检出,尤其是豫西地区,奶牛结核病感染情况较为严重,豫东、豫南和豫中地区无结核阳性个体检出。河南省牛群结核病感染具有明显的群间和空间分布特征,可依据其流行特征,针对不同种群和区域采取相应的防控和净化措施。 相似文献
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本研究采用横断面研究方法,通过两个阶段的随机抽样检测,结合问卷调查,获得大连市羊群布鲁氏菌病血清流行率及感染风险因素,初步了解了当地养羊场户对布鲁氏菌病防控相关知识的掌握情况和行为实践特点。研究结果表明,大连市羊布鲁氏菌病场群血清流行率为8.89%(95%CI:6.14%~11.63%)。从饲养模式看,调查的6个种羊场均无布鲁氏菌病感染,而商品代饲养场和散养村羊群布鲁氏菌病血清流行率分别为13.33%(95%CI:5.64%~21.03%)和8.21%(95%CI:5.24%~11.17%),差异不显著(X~2=1.93,p=0.170.05)。从饲养品种看,不同品种羊群之间的布鲁氏菌病血清流行率差异也不显著(X~2=0.15,p=0.930.05)。单因素分析结果表明,"与其他养羊场户共用种公羊""产后胎衣丢弃和喂狗""流产物喂狗""与其他养羊场户共用交通工具""近一年羊贩子进羊圈""近一年在交易市场买卖羊"等行为是羊群感染布鲁氏菌病的风险因素,而"购入前检测布鲁氏疾病"是显著的保护性因素。进一步的logistic回归分析表明,"近一年在交易市场买卖羊"(OR=4.91,95%CI:1.57%~15.35%)"流产物处理不当"(OR=1.87,95%CI:1.06%~3.30%)是主要的羊群布鲁氏菌病感染风险因素。"知信行"调查结果表明,大连市养羊从业者对布鲁氏菌病的认知程度较好,说明兽医部门的宣传工作有成效。但从行为实践角度来看,仍有部分养羊场户存有侥幸心理,在日常养殖和生活中不采取降低布鲁氏菌病感染风险的措施。 相似文献
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[目的]为了解羊布鲁氏菌病的流行状况,为该地区提供控制畜间布鲁氏菌病的参考。[方法]采用问卷和血清学监测的方式,在全市范围进行了羊布鲁氏菌病流行病学调查。[结果]羊群布鲁氏菌病平均阳性率为3.71%,最高阳性率达7.94%;养殖规模越大阳性率越低;母羊阳性率高于公羊。[结论]大同市羊布鲁氏菌病流行面较广,感染比较严重,尤其是散养羊群和母羊,建议采取“免、检、杀、消”等综合防控措施。 相似文献
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为了解河南省羊布鲁氏菌病流行现状以及羊养殖场感染风险因素,按照两阶段抽样检测方法,采集某县羊养殖场和散养村的羊血清样品,采用虎红平板凝集和试管凝集垂直试验进行布鲁氏菌检测。结果显示,该县散养村的羊布鲁氏菌病表观群体流行率为16.35%,真实群流行率为18.17%(95%CI:12.14%~24.20%),养殖场的表观群体流行率为22.22%,真实群流行率为25.60%(95%CI:13.87%~37.33%)。风险因素分析结果显示,“羊贩随意进出养殖场(OR=18.50,95%CI:1.82~188.39)”和“共用种公羊(OR=12.00,95%CI:1.11~129.42)”是该县羊养殖场感染布鲁氏菌的主要风险因素。结果表明,该县羊布鲁氏菌病流行较为严重,提示该县需要加强布鲁氏菌病防控,提高养羊场户的生物安全管理水平,加强散养村内种公羊的布鲁氏菌监测与净化,及时淘汰阳性羊。 相似文献
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Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1984,25(9):347-350
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12.
Heartworm in dogs in Canada in 1982 总被引：8，自引：8，他引：0
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1983,24(7):227-229
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Owen J Slocombe D McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(9):324-328
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.
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(6):504-508
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
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Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(10):323-327
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16.
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Slocombe JO Villeneuve A 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(10):630-633
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
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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.
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(8):641-646
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
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Owen J Slocombe D McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(8):491-495
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