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1.
本报告是对甘南碌曲县150头牦牛进行住肉孢子虫感染情况的调查,受查牦牛年龄为2～10岁,营养中等。所查住肉孢子虫有两个种,一为牦牛住肉孢子虫(Sarco-cystis poephagi Wei et al.1985);另一种为牦牛犬住肉孢子虫(Sarcocystis poe-phagicanis Wei et al.1985),这两个种的总感染率为97.33%,感染强度为1～82条,平均感染强度12条。其中牦牛住肉孢子虫的感染率为92.66%;牦牛犬住肉孢子虫为96.00%,后者略高。受检的150头牦牛,经肉眼检查,牦牛住肉孢子虫的严重感染者为5头;中度感染为22头;轻度感染为112头;无虫者为11头。牦牛犬住肉孢子虫的严重感染者为9头;中度感染为36头;轻度感染为101头;无虫为4头。两个种均以轻度感染为最多。两个种用肉眼检查和压片镜检的结果是一致的。牦牛的不同性别和不同年龄的感染率均无明显差异。两个种的形状是不相同的。 相似文献
2.
为摸清高寒、高海拔地区牦牛住肉孢子虫感染情况,笔者于2008年结合业务工作,抽样调查我县屠宰上市销售的牦牛134头,检出阳性胴体45头,感染率33.58%。每0.1 g肉样标本中,膈肌,心肌,咽喉肌的感染率分别为29.85%、8.96%和32.09%,膈肌、心肌、咽喉肌的感染范围分别为0～33个、0～17个、0～46个,平均感染强度分别为30.28个、23.42个、33.21个。t检验结果表明,咽喉肌和膈肌的感染率与心肌的感染率之间存在极显著差异性(P<0.01)。本病的感染与牦牛性别无明显的差异性(>0.05)。 相似文献
3.
本文报告1986——1988年对贵州省五地区十个县(市)耕牛肉孢子虫病调查,共剖检水牛155头和黄牛195头。调查肉孢子虫感染情况;对几种住肉孢子虫进行形态观察、测量大小和动物感染试验。结果表明:贵州耕牛住肉孢子虫共有三种,总感染率为89.4%。寄生于水牛的住肉孢子虫有两种,Ⅰ、梭形住肉孢子虫 sarcocystisfusiformis,感染率100%,终宿主为猫,Ⅱ、小型住肉孢子虫 sarcocystis sp,感染率83.9%(与梭形住肉孢子虫混合感染);终宿主为狗。Ⅲ、黄牛一种;枯氏住肉孢子虫 sarcocystis cruzi,感染率81%,终宿主为狗。三种住肉孢子虫以梭形住肉孢子虫感染最严重。患牛全身布满包囊,病变明显而销毁和高温处理的占3.9%。各种感染程度分别为:轻度占62%,中度占24%,严重占14%。包囊在牛体内的分布以食道最多,为100%,颈肌次之,为73.5%,舌肌和背肌均为40%,心肌未见有此种包囊。三种住肉孢子虫以梭形住肉孢子虫的包囊最大,平均9×3.5毫米,孢子囊较小,平均13.4×7.8微米,慢殖子平均14.4×5.5微米。小型住肉孢子虫和枯氏住肉孢子虫两者相似,包囊细小,大小分别为1.6×0.17毫米和2×0.16毫米.慢殖子大小为13.8×6.7微米和13.87×4.93微米,孢子囊大小为15.81×10.33微米和15.75×10.22微米。猫感染梭形住肉孢子虫排囊前期6—7天,排囊持续2—22天,狗感染小型住肉孢子虫排囊前期为8天,持续1—20天;狗感染枯氏住肉孢子虫排囊前期为10天,持续1—10天。兔感染各种住肉孢子虫均未获得成功。对本病的防治方法文内提出讨论建议。 相似文献
4.
笔者等于2007年4-10月期间,对大通县宰马场的马胴体进行了住肉孢子虫感染情况的调查,结果被检查的200匹马胴体中,检查出住肉孢子虫21匹,感染率为10.5%;每0.1g肌肉中,感染强度在1～12之间,平均感染强度3.6;从不同部位的感染来看,膈肌、心肌、食道肌的感染率分别为:5.5%、6.5%、10.5%,从其它肌肉中未发现住肉孢子虫;不同部位的虫体形态膈肌主要以长纺锤形为主,心肌以长椭圆为主,食道肌以长棒形为主. 相似文献
5.
作者等于2007年4月至2007年10月期间,在大通县宰马场的马胴体中进行了住肉孢子虫感染情况的调查,结果被检查的200匹马胴体中,检查出住肉孢子虫的21匹,感染率为10.5%;每0.1克肌肉中,感染强度在1-12之间,平均感染强度3.6;从不同部位的感染来看,膈肌、心肌、食道肌的感染率分别为:5.5%、6.5%、10.5%,从其它肌肉中未发现住肉孢子虫;不同部位的形态膈肌主要以长紡锤形为主,心肌以长椭圆为主,食道肌以长形为主,并对各部位发现的虫体形态进行了拍照,以供同行参考。 相似文献
6.
根据农业部、卫生部、外贸部、商业部在1959年下达的《肉品卫生检验试行规程》,住肉孢子虫像其他寄生虫如棘球蚴、旋毛虫一样,被列为肉品卫生检验中的重要人畜共患寄生虫。对牦牛的住肉孢子虫,作者等在甘肃天祝曾进行了调查研究,首次在国内外发现并报导了’牦牛住内孢子虫的感染情况。青海省是牦牛主要产地之一,全省约有牦牛480万头, 相似文献
7.
采用病原学调查方法,对共和地区绵羊、牦牛、猪的住肉孢子虫感染情况进行调查,共检查绵羊463只、牦牛382头、猪470头,住肉孢子虫感染率分别为73．00％、54．45％、61．91％。经测量,住肉孢子虫绵羊为490．03μm±39．512μm×80．04μm±55．32μm,牦牛为828．42μm±52．893μm×101．02μm±43．52μm,猪为632．51μm±30．103μm×103．74μm＋30．58μm。结果表明：共和地区住肉孢子虫的流行正威胁着当地群众的身体健康。 相似文献
8.
本文对门源县苏吉滩草原上放牧的70头牦牛在不同感染地区、不同感染季节等条件下,感染肝片吸虫病的情况进行了流行病学调查和病原学检查。结果显示有3头牦牛发生感染。这表明,在潮湿牧地和沼泽地带放牧的牦牛感染率为4.29%。幼龄牦牛肝片吸虫的感染率比较高。 相似文献
9.
目的为了解大通县绵羊住肉孢子虫病的感染情况。方法2005年07月至2006年07月期间,对大通县屠宰场的羊胴体运用病原总调查方法,进行了住肉孢子虫感染情况的调查。结果被检查的200只绵羊胴体中,检查出住肉孢子虫的119只,感染率为59.5%。每0.1 g肌肉中,感染强度在1～130之间,平均感染强度7.8。从不同部位的感染来看,膈肌、心肌、食道肌、咽喉肌、半膜肌的感染率分别为:85.8%、68.5%、51.5%、22.5%、70.5%。膈肌中住肉孢子虫主要以长梭形为主,占被检出的34%;心肌中以椭圆为主,占被检出的39%;食道肌中以长纺锤形为主,占被检出的48.5%;咽喉肌中以椭圆形为主,占被检出的60%;半膜肌中以长纺锤形为主,其虫体清晰,占被检出的65.2%。结论食道肌和膈肌感染强度较高,对绵羊进行检疫时需首先检查这两个部位 相似文献
10.
对德令哈地区135只绵、山羊住肉孢子虫感染情况进行调查.结果发现:该地区羊的总感染率为92.59%,蓄集乡感染率最高(93.93%).
…… 相似文献
11.
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
12.
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
13.
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
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 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
17.
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
18.
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
20.
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
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