共查询到20条相似文献，搜索用时 46 毫秒
1.
高致病性禽流感（highly pathogenic avian influenza, HPAI）和新城疫（newcastle disease, ND）等烈性传染病对养禽业危害严重,是养禽业需重点防控的疾病,其中HPAI是国家规定的强制免疫疫病。武汉市新洲区为家禽养殖大区,有规模禽场350余家,养殖规模近1140万只。为了解2021年度武汉市新洲区规模养殖场高致病性禽流感和新城疫免疫抗体合格率,武汉市新洲区农业技术推广服务中心连续12个月对辖区内规模鸡场进行蛋样抽检,运用血凝和血凝抑制试验,分别检测了高致病性禽流感H5亚型、H7亚型和新城疫的免疫抗体。结果显示,高致病性禽流感H5亚型、H7亚型和新城疫的整体免疫抗体合格率分别为94.1%、96.4%和88.9%,均达到了农业农村部规定的免疫抗体合格率不低于70.0%的标准。 相似文献
2.
为监测河南省高致病性禽流感免疫抗体和野毒感染情况,笔者按照《河南省2022年动物疫病监测与流行病学调查计划》的要求,采用HI试验检测禽流感免疫抗体,采用荧光RT-PCR方法检测病毒核酸,在全省开展禽流感专项监测工作。结果表明,河南省高致病性禽流感免疫抗体群体合格率为93.2%,禽流感H5亚型平均个体抗体合格率为94.04%,H7N9亚型平均个体抗体合格率为96.32%。不同地区的禽流感H5亚型和H7N9亚型免疫抗体合格率均>90%,种禽场、商品代场和屠宰场采集的血清样本免疫抗体合格率均在92%以上。未检出H5亚型和H7亚型禽流感病毒核酸。共检出76份禽流感病毒H9亚型阳性样本,阳性率为2.07%。结果表明,河南省高致病性禽流感整体防控效果良好,免疫抗体水平均高于国家标准;未检出高致病性禽流感病毒,但有低致病性禽流感感染的现象。本次调查将为河南省进一步做好禽流感防控工作提供数据支撑。 相似文献
3.
为了切实了解岑巩县家禽高致病性禽流感的免疫效果,为禽流感的防控工作提供参考依据,随机抽取岑巩县家禽血清样品480份对禽流感免疫抗体进行血凝抑制试验检测。结果:高致病性禽流感H5亚型的总体免疫抗体合格率为80.42%(386/480),达到农业农村部规定的≥70%要求;高致病性禽流感H7亚型的总体免疫抗体合格率为40.63%(195/480),散养户和个别规模场未达到农业农村部规定的要求。 相似文献
4.
[目的]调查青岛市家禽高致病性禽流感免疫水平,测定该地区的禽流感流行率,分析流行的风险因素。[方法]在全市家禽养殖场（户）、农贸市场、屠宰场和野鸟栖息地随机抽样,采用血凝抑制方法测抗体,采用荧光定量RT-PCR方法检测禽流感病原,同时开展禽流感血清学和病原学检测。利用GIS、EXCEL软件,分析青岛市禽流感检测样品的空间分布、免疫抗体水平、病原流行率及分布。[结果]青岛市家禽H5N1禽流感（Re-6）免疫抗体场户合格率为76.3%,个体合格率为74.8%;H5N1禽流感（Re-7）免疫抗体场户合格率为72.5%,个体合格率为71.4%;H5亚型禽流感病原学检测全部阴性;H9亚型禽流感个体流行率为1.18%,全部来源于农贸市场和屠宰场。[结论]青岛市家禽高致病性禽流感的免疫状况良好,在所有家禽和野禽活动场点未发现高致病性禽流感病毒,表明青岛市高致病性禽流感防控效果较好。 相似文献
5.
为了解渭南市H5亚型和H7亚型高致病性禽流感(HPAI)免疫情况,2020—2022年,随机抽取规模养鸡场和散养户采集血清样品,采用血凝和血凝抑制试验进行禽流感病毒免疫抗体检测,并对检测数据进行统计分析。结果显示:H5亚型HPAI免疫抗体合格率为96.28%,H7亚型HPAI为92.24%;2020年H5亚型HPAI抗体合格率极显著高于H7亚型(P<0.001),2022年H5亚型HPAI抗体合格率显著高于H7亚型(P<0.05);12个区域的H5亚型HPAI抗体合格率为85.00%～100%,H7亚型HPAI抗体合格率为70.48%～98.80%;规模养鸡场、散养户的H5亚型、H7亚型HPAI平均抗体合格率均存在显著性差异(P<0.05)。结果表明,渭南市H5亚型和H7亚型HPAI抗体水平较高,免疫效果较好。建议规模化养鸡场持续做好免疫效果评估,散养户加强免疫主体责任意识,以进一步提升禽流感整体防控水平。 相似文献
6.
《广西畜牧兽医》2021,(3)
为了解玉林市2020年上半年规模禽场重组禽流感病毒(AIV)(H5+H7)三价灭活疫苗(H5N1 Re-11株+Re-12株,H7N9 Re-2株)的免疫效果以及该疫苗不同厂家的田间免疫效果,本研究采用血凝(HA)和血凝抑制(HI)方法对玉林市2020年上半年7个县(市、区)21家规模化禽场采集的1 260份血清进行了H5和H7亚型高致病性禽流感病毒(HPAIV)抗体检测。结果显示,玉林市规模鸡场和规模鸭场使用该疫苗免疫,H5亚型HPAIV免疫抗体合格率在免疫后21天分别为99.05%和100%,在免疫后42天分别为99.29%和100%;H7亚型HPAIV免疫抗体合格率在免疫后21天分别为99.29%和99.52%,在免疫后42天分别为99%和100%。3个不同疫苗厂家的疫苗免疫后21天,规模鸡场和规模鸭场的抗体合格率分别为100%和100%,98.33%和99.17%,100%和98.33%;免疫后42天,规模鸡场和规模鸭场抗体合格率均为100%。本结果表明,玉林市2020年上半年规模禽场H5和H7亚型HPAIV免疫抗体合格率均高于国家规定的70%标准,免疫效果较好,同时3个不同疫苗厂家的疫苗田间免疫效果均较好。 相似文献
7.
为了解湖南省家禽(鸡、鸭、鹅)H7N9亚型禽流感的免疫抗体水平及其流行情况,2022年在全省14个市州,采用配额抽样方法,在种禽场、商品代场、散养户和活禽市场共采集46 112份禽血清和53 246份禽拭子样品,通过血凝抑制试验、荧光定量PCR方法分别进行免疫抗体和病毒核酸检测。结果显示:H7N9亚型禽流感免疫抗体平均场群合格率为93.27%,平均个体合格率为90.60%,仅在活禽市场的1份鸡拭子样品中检测到病毒核酸阳性;鸡H7N9亚型禽流感免疫抗体平均场群合格率和个体合格率(94.66%和91.51%)均高于水禽(83.26%和81.86%);种禽场的免疫抗体平均场群合格率和个体合格率最高,活禽市场最低,两者差异具有统计学意义(P <0.05);全省14个市州的H7N9亚型禽流感免疫抗体平均场群合格率和个体合格率均在70%以上。结果表明:2022年湖南省家禽H7N9亚型禽流感免疫效果较好,在饲养场禽群中也未检出病原,发生大规模疫情的风险较低,但在活禽市场中仍检出病原,且水禽以及散养户和活禽市场禽群的免疫抗体水平略低,疫情散发风险依然存在。建议进一步加强对H7N9亚型禽流感的免疫... 相似文献
8.
为科学评估柳州市规模化养殖环境下肉鸭的高致病性禽流感（H5和H7亚型）免疫抗体水平和疫情发生风险,采用血凝抑制试验（HI）和荧光PCR方法,对2021年全市各县区肉鸭规模养殖场采集血清样品、喉头/泄殖腔棉拭子分别进行抗体和病原检测,并对检测结果进行不同血清型、不同县区、不同季度的统计对比分析。结果显示：H5亚型免疫抗体总合格率为76.48%（3 472/4 540）,平均滴度为5.52log2,H7亚型免疫抗体总合格率为68.00%（3 087/4 540）,平均滴度为4.20log2;经卡方检验,H5亚型免疫抗体总合格率显著高于H7亚型（P＜0.01）。所有病原样品中均未检测到H5和H7亚型高致病性禽流感病毒。禽流感免疫抗体合格率在不同区域间存在一定差异,其中县级地区的免疫抗体总合格率显著高于城区（P＜0.01）。不同季度的禽流感抗体总体合格率依次为第四季度＞第二季度＞第一季度＞第三季度。结果表明：柳州市规模肉鸭养殖场的H5、H7亚型禽流感免疫效果整体良好,发生高致病性禽流感的风险较低;但仍需全年持续加强禽流感免疫监测和风险评估,部分城区应着重做好补免和加强免疫工作,从而构筑有效的免疫屏障,防止禽流感疫情发生,保障养禽业健康发展。 相似文献
9.
为了研究湘西自治州规模化鸭场的高致病性禽流感的免疫情况和潜在的感染风险,笔者于2008年从湘西自治州各县市采集了规模化鸭场血清标本共480份,采用血凝试验和血凝抑制试验对4个免疫了H5亚型禽流感病毒灭活疫苗的规模化鸭场的不同日龄家鸭进行了H5和H7亚型禽流感病毒抗体的检测。结果表明:4个规模化鸭场H5亚型禽流感病毒抗体合格率分别为65.56%(59/90)、67.78%(61/90)、53.33%(48/90)、47.78%(43/90),说明规模化鸭场的H5亚型免疫抗体水平还有待提高,以对家鸭提供确实的保护;H7亚型禽流感病毒抗体阳性率为0,规模化鸭场没有H7亚型禽流感病毒感染。 相似文献
10.
本研究自2013年起至2015年底,对湘西州8个县市的禽类进行了H5亚型禽流感免疫抗体水平的监测.共采集了规模禽场和散养户的禽血清11216份,其中鸡血清9261份、鸭血清1866份、鹅血清89份.并利用血凝-血凝抑制试验对这些样品进行免疫抗体的检测,整体的免疫合格率达到86.9%.从监测结果来看H5亚型禽流感的免疫抗体合格率在逐年上升.为了掌握湘西自治州高致病性禽流感免疫抗体水平的情况、及时发现疫苗免疫的漏洞,为湘西州高致病性禽流感的防控提供科学决策的依据. 相似文献
11.
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
13.
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
15.
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.
17.
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
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.
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
20.
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