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1.
为了解浙江省和河北省规模化猪场猪群弓形虫自然感染的情况,在23个规模化猪场随机采集了463例猪血清,采用间接酶联免疫吸附法(ELISA)对猪血清中弓形虫抗体进行检测。结果表明:猪群总感染率为44.49%;浙江省猪群感染率为36.82%,河北省猪群感染率为50.38%;从不同年份感染情况分析,2016、2017和2018年猪群感染率分别为为37.11%、45.49%和52.20%,呈逐年上升的趋势;从胎次感染情况分析,1～6胎次、高胎次(6胎以上)母猪感染率分别为42.10%、52.94%、47.17%、45.95%、54.00%、63.64%、37.50%,母猪群总感染率为49.28%。调查检测结果表明猪群弓形虫感染很普遍,在不同猪场均有一定程度的感染,而母猪感染率较高。 相似文献
2.
为了解规模化猪场母猪弓形虫自然感染的情况,采用间接酶联免疫吸附法(ELISA)对14个规模化猪场共184份母猪血清进行了猪弓形虫抗体检测。结果表明:母猪群总感染率为58.7%,后备母猪感染率为55.6%;怀孕母猪、哺乳母猪、空怀母猪、流产母猪感染率分别为53.3%、72.7%、60.0%、90.0%;母猪怀孕前期、中期、后期的感染率分别为56.9%、57.8%、36.0%;从胎次感染情况分析,1~6胎次、高胎次(6胎以上)母猪感染率分别为74.2%、62.2%、58.1%、50.0%、50.0%、57.1%、65.0%。说明弓形虫在母猪各阶段包括后备母猪的感染很普遍,母猪孕期的每个阶段都有可能感染,其中整个怀孕期感染率最高的是怀孕中期。流产母猪感染率最高,达90.0%,提示弓形虫感染是母猪流产的一个重要因素。另外,从胎次感染的情况看,1~2胎次和高胎次母猪感染的可能性大。 相似文献
3.
为了查清新疆南疆某规模化羊场弓形虫病的感染情况,对该规模化羊场不同羊群进行随机抽样,采用弓形虫间接血凝试验（IHA）进行了血清学调查。调查结果表明,该规模化羊场的羊弓形虫感染率为2.05%（10/486）,虽然该规模化羊场羊弓形虫的感染率较低,但仍需引起足够重视,加强防范。 相似文献
4.
为了查明河南省平顶山市鲁山县尧山白山羊弓形虫病流行情况,应用间接血凝试验(IHA)检测方法,对平顶山市鲁山县6个乡镇24个羊养殖场共814份血清样品进行弓形虫抗体检测与分析。结果显示,被调查的6个乡镇羊弓形虫阳性率为3.61%～8.49%,平均阳性率为6.02%;羊弓形虫阳性率随羊年龄增长而呈上升趋势,其中以3岁以上羊群阳性率最高(9.22%),高于2-3岁羊群阳性率(7.04%)和1-2岁羊群阳性率(5.08%),0-1岁羊群最低,为4.02%;规模化羊场阳性率明显低于散养羊场,分别为3.34%和15.05%。表明该地区羊弓形虫病流行情况较为低,但增加了人类感染弓形虫病的风险,相关防控部门和羊场管理人员应该引起重视。 相似文献
5.
为了解青海省海南地区猪弓形虫病的感染情况,采用间接血凝试验对2015年采集的15个规模化猪场及散养的460份猪血清进行了弓形虫病血清学抗体的检测。试验结果表明:待检的460份血清样品,弓形虫抗体阳性52份,阳性率为11.30%。结果表明:规模化养殖和散养两种不同的养殖方式之间感染差异显著(P0.05)。最高的猪场弓形虫阳性率可达28.89%。其中成年猪的感染率为18.6%,高于仔猪和保育猪的4.6%(P0.05)。哺乳母猪感染率最高,可能与成年猪的饮食习惯及接触环境中卵囊机会有关。 相似文献
6.
为了解大通县羊弓形虫病流行情况,笔者于2016年11月-2017年3月,采用间接血凝试验(IHA)方法对采集自大通县的560份羊血清样品进行了血清学检测分析。结果显示,羊弓形虫病阳性数为3份,样品总体阳性率为0.54%;不同地区、不同年龄阶段羊群及不同性别间羊弓形虫抗体阳性率差异不显著。表明羊弓形虫感染在大通县存在,感染率较低,以散养户为主,规模养殖场未检出阳性血清,建议散养户应做好弓形虫病的防控工作。 相似文献
7.
为了解贵州省羊群中小反刍兽疫病毒(PPRV)隐性感染情况及疫苗免疫效果,采集未免疫羊群血清样本242份和免疫羊群血清276份进行了羊PPRV血清抗体ELISA检测。结果显示,贵州省PPRV隐性感染抗体阳性率为25.2%(61/242),不同地区隐性感染率差异较大;在多数月份均出现隐性感染情况。对疫苗免疫羊群的调查显示,PPRV疫苗整体免疫效果呈现较大差异,总体免疫效果不佳。研究结果表明,贵州省部分羊群存在不同程度PPRV感染威胁,且疫苗免疫效果不佳,应加强综合防控。 相似文献
8.
研究旨在初步了解平顶山市猪弓形虫病感染情况,于2018年3—11月采集平顶山市部分地区14个猪场共742份猪血清样品,应用ELISA(酶联免疫吸附试验)检测试剂盒对血清样品中弓形虫抗体进行检测与分析。结果显示,742份猪血清样品中有267份检测为弓形虫抗体阳性,平均阳性率为35.98%;不同养殖模式猪场弓形虫抗体检出率存在较大差异,其中散养场最高(57.39%),种猪场稍高(38.14%),规模化猪场最低(18.56%);在被调查的4个县市中,舞钢市、郏县、叶县和鲁山的猪弓形虫抗体检出率分别为48.82%、48.44%、39.62%和18.65%。调查结果说明,河南平顶山市猪弓形虫感染普遍存在,相关有效的防制措施急需制定与实施。 相似文献
9.
为了解东莞市多种动物弓形虫感染的情况,采用ELISA方法对采自东莞市生猪屠宰场的猪血清3238份和饲养的犬血清299份、猫血清33份进行抗体检测,结果为猪血清弓形虫抗体阳性98份,抗体阳性率为3.03%,犬血清抗体阳性25份,抗体阳性率8.36%,猫血清抗体阳性4份,抗体阳性率12.12%。结果表明猪、犬和猫都存在不同程度的弓形虫感染,其中猫的感染率最高,其次为犬,弓形虫病防治需要采取综合防控措施。 相似文献
10.
弓形虫病是一类重要的人畜共患寄生虫病,可导致宿主出现神经症状和繁殖障碍等疾病,同时对养殖户和消费者健康造成巨大的威胁。为了掌握河南省鹤壁市肉羊弓形虫病流行情况,采用酶联免疫吸附试验(ELISA)对鹤壁市不同地区33个羊场随机采集的728份肉羊血清样品进行了弓形虫抗体检测。结果表明:13个羊场含有弓形虫病阳性羊只,场阳性率39.39%,共83份血清样品检测为阳性,总阳性率11.40%;舍饲羊群弓形虫病阳性率较放牧羊群低,分别为9.88%和15.09%;不同发育阶段羊群弓形虫病阳性率有较大差异,其中以成年母羊偏高,为16.21%,仔(幼)羊群最低,为4.61%。说明鹤壁市肉羊弓形虫病流行情况较为严峻,相关防控措施需要实施。 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 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
18.
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
19.
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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