大通县绵羊住肉孢子虫感染情况调查

住肉孢子虫病是由多种肉孢子虫（sarcocgsitis）寄生于哺乳动物、鸟类、爬行类、鱼类等多种动物和人所引起的寄生虫病,分布广泛,感染率高,对人畜危害较大。各种住肉孢子虫均为异宿主寄生,终末宿主是犬、狐和狼等肉食动物,寄生于小肠上皮细胞内;中间宿主是草食动物、禽类、啮齿类和爬行类等,住肉孢子虫寄生于中间宿主的肌肉内,人可作为某些住肉孢子虫的中间宿主或终末宿主,因此有些种住肉孢子虫是人畜共患寄生虫。     

大通县绵羊住肉孢子虫感染情况调查

住肉孢子虫病是由住肉孢子虫寄生于肌肉间引起的一种食源性人畜共患寄生虫病,以食肉动物为中间宿住,主要寄生于中间宿主的肌肉中,分布广泛,感染率高。为了解近几年大通县绵羊住肉孢子虫病的感染情况,笔者在2005年7月-2006年7月对大通县屠场的绵羊胴体进行了涸杏,为今后防治工作和肉品检疫提供科学的依据,并探讨其流行痫学。     

甘肃部分地区羊肉孢子虫病的检出及其病原特征

住肉孢子虫除寄生于家畜家禽外,在鼠类、鸟类、爬虫类、鱼类、昆虫类等动物亦有寄生,人也有住肉孢子虫寄生病例的报道。住肉孢子虫病是由寄生性原虫(?)肉孢子虫,寄生于动物肌肉组织引起的一(?)生虫病。通常情况下,不表现临床症状的肌肉变化,只有当严重感染时方可表现出临床症状。如绵羊患急性肉孢子虫病时,在临床上则表     

绵羊住肉孢子虫病

绵羊住肉孢子虫病是一个世界性分布的寄生性原虫病。住肉孢子虫(Sarcocystis)以包囊的形式寄生在绵羊横纹肌肉。过去一直认为住肉孢子虫对绵羊无致病性,没有开展对本病的研究工作。近十多年来,国外对绵羊住肉孢子虫病进行了广泛的研究,并取得了很大进展。现将国内外有关绵羊住肉孢     

广州附近地区猪、水牛住肉孢子虫的初步调查

住肉孢子虫属于孢子虫纲、住肉孢子虫科、住肉孢子虫属(Sarcocytis),广泛地寄生于哺乳动物、鸟类和爬行类动物的肌肉中,曾被世界卫生组织列为重要的人兽共患寄生虫病之一,受到了国内外兽医界和医学界的广泛关注。猪、牛肉是人类肉食品的主要来源,当肉品中有大量的住肉孢子虫寄生时,可影响肉的食用价值和卫生质量,并对人类的健康有潜在的威胁。近十多年来,随着人们生活水平的提高,对肉品质量要求越来越高,同时,畜牧业经济的快速发展使家畜的饲养方式也发生了很大的改变,有必要搞清住肉孢子虫的感染情况。为此,我们于2000年1月至2001年4月,对广州、佛山地区商品猪和水牛住肉孢子虫的感染情况进行了调查。     

化隆县东部地区绵羊住肉孢子虫感染情况调查

孢子虫病由住肉孢子虫寄生于肌肉间引起的一种食源性人畜共患寄生虫病.为了摸清化隆县东部四乡绵羊住肉孢子虫感染情况,笔者于2004年7月～10月进行了调查,旨在为今后防治工作和肉品检验提供科学依据.现报道如下.     

牛住肉孢子虫感染情况的调查报告

住肉孢子虫又称为肌肉孢子虫。寄生在牛体的肉孢子虫,称为牛住肉孢子虫。这种寄生虫可感染牛、羊、猪、马及其他多种动物,如:黄羊、鸟、鼠、鱼等,也可感染人,使之成为终未宿主,而发生肉孢子虫病。猫和狗在家畜住肉孢子虫的传     

乌兰县羊住肉孢子虫感染情况调查

住肉孢子虫属孢子纲、住肉孢子虫属。这个属的寄生虫寄生于家畜 (马、黄牛、水牛、牦牛、绵羊、山羊、猪 )、鼠类、鸟类、爬虫类和鱼类等多种动物、偶尔寄生于人。李承钰等 (１９９１)曾对西宁地区农贸市场上销售的羊胴体肉孢子虫病感染情况进行过报道。我于２０００年对乌兰县定点屠宰场从三乡收购的菜羊进行了住肉孢子虫感染情况的抽样调查。１材料和方法１．１调查对象每乡抽检３６只 ,每只胴体采取膈肌、食道肌、心肌各１０ｇ。１．２调查方法每份肉样弃去包膜后 ,肉眼仔细观察 ,然后仔细随机称取各部位肌肉０．１ｇ,按肌纤维方向剪碎 ,…     

牦牛住肉孢子虫病的研究成果在兰通过鉴定

中国农业科学院中兽医研究所承担的甘肃省科委科研项目《牦牛住肉孢子虫病的研究》由甘肃省科委主持,于1989年10月25日在兰州通过成果鉴定。住肉孢子虫(Sarcocystis)是寄生于多种动物和人体肌肉的一种重要的、甚至是     

畜禽住肉孢子虫病的诊治

<正>住肉孢子虫属孢子虫纲,住肉孢虫属Sarcocystis寄生于牛、羊、马、猪以及鼠类、爬虫类和鱼类,人偶见寄生。家畜感染住肉孢子虫时,一般不表现出症状,但肉尸大量寄生虫体,局部肌肉发生变色变性而不能食用。1病原家畜体内的肉孢子虫在形态构造上大体相似,通常见到的虫体是寄生在肌肉组织间与肌纤维平行的包囊状物,即孢子囊,又称未休尔管(Miescher,stube),管呈纺锤形、圆柱形或卵圆形     

Heartworm in dogs in Canada in 1984

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.

     

Heartworm in dogs in Canada in 1991

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.     

Heartworm in dogs in Canada in 1983

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.

     

Heartworm in dogs in Canada in 1985

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.

     

Heartworm in dogs in Canada in 1988

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%).     

Heartworm in dogs in Canada in 1989

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.

     

Heartworm in dogs in Canada in 1987

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%).     

Heartworm in dogs in Canada in 1986

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.