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《中国兽医杂志》2018,(8)
为了解河南地方品种鸡禽白血病病毒感染状况,2015年10月至2017年4月,在河南地区9个种鸡场,采集了5个河南地方品种1 450只开产母鸡的泄殖腔拭子、血清和蛋清,利用ELISA方法检测3种样品中的禽白血病病毒p27抗原和血清中的禽白血病病毒A/B亚型、J亚型抗体。结果:河南地方品种鸡群总体ALV p27抗原阳性率为泄殖腔拭子22. 62%、血清26. 83%、蛋清12. 90%;鸡群总体血清ALV-A/B亚型、J亚型抗体阳性率分别为24. 76%和19. 52%。5个品种鸡群的血清ALV p27阳性率依次为河南斗鸡84. 48%、淅川乌骨鸡53. 78%、固始鸡19. 81%、三黄鸡17. 22%、卢氏鸡16. 67%,但同品种不同场区间差异较大。表明河南省地方品种鸡群存在不同程度的ALV感染,且可能存在ALV-A/B亚型和ALV-J亚型的同时感染。 相似文献
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鸡志贺氏菌感染的血清流行病学调查 总被引：3，自引：0，他引：3
利用研制的鸡志贺氏菌平板凝集抗原及微量平板凝集试验，对我国河南、山东等不同地区35家鸡场具有拉稀病史的670只鸡血清灭活样品进行了检测。通过检测对鸡志贺氏菌病的发病率、流行地区、品种，日龄及其混合感染等进行血清流行病学调查。结果表明：我国部分地区存在有鸡志贺氏菌感染，其血清抗体阳性率较高，达28．3％（155／547）～33．7％（226／670），已远远超过鸡白痢鸡伤寒（1．4％）。目前该病在我国部分地区已广泛流行，不同品种和日龄的鸡均可发生，但血清阳性率存在显著差异，其中固始鸡和罗曼鸡血清阳性率高于其他品种，幼雏血清阳性率高于成鸡。鲍氏血清型阳性率高于痢疾型，并以二者混合感染为主，而该病与鸡白痢鸡伤寒的混合感染很少发生。 相似文献
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为掌握禽偏肺病毒(aMPV)在安徽省鸡群中的感染状况,采用酶联免疫吸附试验(ELISA)对安徽省合肥、亳州、定远、舒城等地区的9个鸡场、7个不同品种(系)鸡群的296份血液样本进行了aMPV血清抗体检测。结果表明,所有被检鸡场均有aMPV感染,鸡场阳性率最高达100%,最低为20%;各品种(系)鸡均有感染,感染率最高的是青脚麻肉鸡,其次分别为科宝肉鸡、海兰蛋鸡、禽粤黄蛋鸡、淮南麻黄鸡、黄羽土鸡和新广麻肉鸡;其中蛋用型鸡血清样本总体阳性率为88.7%,明显高于肉用和兼用型鸡;公鸡和母鸡血清抗体阳性率均较高。研究结果表明,安徽省鸡群aMPV的感染已广泛存在,且不同地区、品种(系)、用途和性别的鸡群均较严重,应根据感染状况尽早制定相应的防控对策。 相似文献
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《中国兽医杂志》2014,(8)
为了解我国鸡群中禽呼肠孤病毒(Avian reovirus,ARV)的抗体水平,本研究利用ELISA方法对2010-2013年来自全国19个省市的鸡血清样品进行了ARV抗体检测。在检测的17 058份鸡血清样品中共检出ARV抗体阳性血清156 80份,阳性率为92.83%,其中免疫鸡群的阳性率为98.50%,非免疫鸡群的阳性率为74.72%。除山东省和广东省外,其他各个省市的样本阳性率均在90%以上。商品肉鸡、肉种鸡、商品蛋鸡和蛋种鸡的ARV抗体阳性率分别为72.66%,98.48%,93.40%和95.53%。部分地方品种鸡群的ARV抗体水平也较高。结果表明,我国鸡群ARV感染情况普遍存在,主要表现为一定比例的免疫鸡群抗体过高、未免疫鸡群存在较高的抗体阳性率。 相似文献
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本研究采集了上海地区规模化蛋鸡场、林地散养鸡场、种山鸡场的健康产蛋鸡群共240份血清,进行了鸡毒支原体感染抗体的ELISA血清学检测。结果显示,规模化蛋鸡场和林地散养蛋鸡场鸡毒支原体感染抗体平均阳性率分别为97.8%和93.3%,两种饲养模式的鸡群鸡毒支原体感染率都很高,两者无显著差别;3个种山鸡场检测结果差异较大,分别为100%、0、30%,说明种山鸡对鸡毒支原体的感染并不普遍;对规模化肉鸡场鸡群鸡毒支原体抗体跟踪结果表明,在65日龄时鸡毒支原体在鸡群中已经存在,65~90日龄期间鸡群普遍感染鸡毒支原体,肉鸡上市前感染抗体阳性率达到94%。结果表明,产蛋鸡群鸡毒支原体感染情况与饲养方式没有相关性,均呈现较高阳性率,种山鸡感染并不普遍,肉鸡群感染鸡毒支原体高峰期在65~90日龄之间,预防鸡毒支原体病的最佳日龄应在30~60日龄之间。 相似文献
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采用禽白血病抗体ELISA检测试剂盒,对武平县境内三个黄羽品种鸡采集6个场272份血清进行禽白血病A、B亚型抗体（ALV-AB）和J亚型抗体（ALV-J）检测。结果表明：武平县三个黄羽品种鸡群中存在ALV-J亚型和AB亚型自然感染现象,其中ALV-AB抗体阳性率为27.6%（75/272）,ALV-J抗体阳性率为20.6%（56/272）,同时具有ALV-AB抗体和ALV-J抗体的阳性率为11%（30/272）;不同鸡群的ALV感染有所不同,广西三黄鸡〉长汀河田鸡〉武平象洞鸡、商品鸡〉种鸡。 相似文献
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《黑龙江畜牧兽医》2017,(14)
为了解沈阳地区不同品系鸡群禽白血病(AL)流行情况,于2015年7月份—2016年6月份采集了沈阳市5个县(区)28家规模化鸡场72个不同品种、不同代次、不同日龄鸡群的泄殖腔棉拭子1 896份、翅静脉血液4 656份,对采集的样品分别进行了禽白血病病毒(ALV)p27抗原和血清中禽白血病病毒J亚群(ALV-J)抗体的检测。结果表明:沈阳地区不同品种鸡群中存在不同程度的ALV-J亚群感染,平均阳性率为3.39%,p27抗原阳性率平均为5.70%;且肉鸡品种的J亚群抗体阳性率(4.50%)高于蛋鸡品种(2.05%),肉鸡品种的p27抗原阳性率(7.37%)高于蛋鸡品种(3.10%);产蛋初期的鸡群p27抗原阳性率(9.97%)和J亚群抗体阳性率(5.56%)高于其他生长阶段。 相似文献
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云南省鸡减蛋综合征的血清学调查 总被引：1，自引：0，他引：1
从云南省10个养鸡场采集不同日龄、品种、性别和不同用途鸡的血清样品103份，以血凝抑制（HI）试验检测鸡群的减蛋综合征（EDS）血清抗水平，结果，10周龄以下鸡的EDS血清抗体阳性率为16．7％，其阳性率随着日龄的增加而增高；不同品种鸡群中，迪高鸡和地方土鸡的EDS血清抗体阳性率较低，而伊萨褐鸡阳性率高达100％；公鸡EDS血清抗体阳性率为55．6％，母鸡为73．4％；商品鸡EDS血清抗体阳性率为68．95，种鸡阳性率为62．5％；全部检测各的平均阳性率为67．9％，多数血清EDS HI效价为1：32－1：1024之间，最高的达1：4096。 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13.
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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Ovine scrapie was first recorded in Cyprus in 1985. Subsequently four dairy goats kept in two mixed flocks with affected sheep developed characteristic clinical signs similar to those seen in sheep. Fifteen goats from the two flocks were examined histologically and neurological lesions consistent with a diagnosis of scrapie were found in the four animals and in three others which had subsequently developed early neurological signs. These lesions were similar to those of naturally-affected sheep although neuronal degeneration and vacuolation were more severe in some cases. 相似文献
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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16.
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18.
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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