猪旋毛虫检验方法探析

随着人民生活水平的提高，人们对肉品卫生安全和身体健康甚为关注。猪的旋毛虫病是一种人畜共患寄生虫病，严重危害人畜健康。旋毛虫病的宿主是猪和犬，旋毛虫猪肉是人旋毛虫的重要传染来源。旋毛虫猪肉快速检验是防止旋毛虫病既经济又可靠的办法，现介绍几种检验方法，供参考。     

(60)~Coγ射线辐照对旋毛虫影响的研究

旋毛虫病是由毛首目、毛形科的旋毛虫(Trichinella Spiralis)引起的人畜共患病。家畜中以猪的感染率最高。人患旋毛虫病主要是食入生的或未煮熟的旋毛虫病猪肉而感染。使生猪肉不具有旋毛虫传染性的一种有前途的方法就是γ辐照,美国已无条件批准γ辐照鲜猪肉,以控制旋毛虫病。~60Coγ射线辐照对旋毛虫影响的研究,其主要目     

浅谈猪旋毛虫病与肉品卫生检验

旋毛形线虫简称旋毛虫,属线形动物门、线虫纲、旋毛虫属,旋毛虫病是由旋毛虫成虫和幼虫先后寄生于动物肠和肌肉所引起的肠旋毛虫病和肌旋毛虫病的总称。该病是一种严重传染病,除人畜外,可造成近百种野生动物感染发病,家畜中以猪为主,由于猪肉是人们生活主要肉食来源,人往往由于食入未经煮熟带旋毛虫幼虫的猪肉及制品而引起发病。     

屠宰场对鲜猪肉旋毛虫病的镜检与处理方法

<正>旋毛虫病是旋毛虫的成虫和幼虫寄生于人和动物的疾病,多种动物例如肉食兽、草食兽、杂食兽以及家禽等都能感染。因此,对屠宰场鲜猪肉进行正确规范的旋毛虫病检验工作越来越显重要,本文对鲜猪肉旋毛虫病的显微镜检验方法及处理措施进行了较为详细的阐述。1旋毛虫病的感染过程旋毛虫的成虫见于人类、猪、大鼠、熊和许多其他食肉动物的小肠内。食入     

猪旋毛虫检验方法探析

随着人民生活水平的提高,人们对肉品卫生安全和身体健康甚为关注。猪的旋毛虫病是一种人畜共患寄生虫病,严重危害人畜健康。旋毛虫病的宿主是猪和犬,旋毛虫猪肉是人旋毛虫的重要传染来源。旋毛虫猪肉快速检验是防止旋毛虫病既经济又可靠的办法,现介绍几种检验方法,供参考。1旋毛虫镜检法旋毛虫镜检法,是一种检验肉品中有无旋毛虫的传统方法,具体操作方法是:从膈肌或其它规定部位取4～5g肉样,从每一肉样剪取12块如麦粒大小的肉,压在两玻片之间,目镜用旋毛虫镜检器或显微镜将视野投放到屏幕上观察。2旋毛虫的“目检法”“目检法”即用眼睛观察…     

猪旋毛虫的检疫及防控措施

猪旋毛虫病是一种人畜共患寄生虫病,在公共卫生学上具有十分重要的意义,也是猪肉制品卫生检验项目之一。该病对人类健康和养猪业的可持续发展均有较大危害。本文主要从该病的病原学、旋毛虫生活史、流行病学、检测方法及防治措施等方面进行了综述。以期为临床上旋毛虫病的防治和猪肉及其制品中旋毛虫的屠宰检验提供参考。     

猪旋毛虫病诊断和治疗方案

正旋毛形线虫简称旋毛虫,旋毛虫病是由旋毛虫成虫和幼虫先后寄生于动物肠和肌肉所引起的肠旋毛虫病和肌旋毛虫病的总称。该病是一种严重人兽共患寄生虫病,感染宿主非常广泛,传染途径复杂,人和鼠类、狗、猫等多种哺乳动物可感染该病,在家畜中主要感染猪。由于猪肉是人们生活主要肉食来源,如人食入未经煮熟带旋毛虫幼虫的猪肉及制品会引起发病。因此,猪旋毛虫病对人体健康造成很大威胁,同时对养猪业、肉品加工业造成巨大经济损失。     

德令哈市猪旋毛虫感染情况调查

旋毛虫病是毛首目毛形科的旋毛虫引起的人畜共患寄生虫病，感染多种家畜及人，人的感染主要是由于摄食了生的或未经充分煮沸的含旋毛虫包囊的猪肉而引起。人感染后可致人死亡，所以肉品卫生检验中将旋毛虫检验项目列为首要检验项目一为了掌握德令哈市的旋毛虫感染情况，笔者对德令哈市及附近地区。     

331只狗肉尸旋毛虫感染情况的调查报告

旋毛虫病是经肉传染给人的人畜共患寄生虫病,对人类具有较大危害,人感染旋毛虫的主要来源是食用了含旋毛虫的猪肉或狗肉。对猪肉的旋毛虫检验早已纳入兽医卫生检验规程,而对狗肉的检验尚不够重视,为了解和掌握狗感染旋毛虫的情况,我们从长春市21家经营狗肉的餐馆(狗肉馆)取331只鲜狗肉尸,做了旋毛虫寄生情况的调查,现报告如下。     

冷冻温度对国际标准株旋毛形线虫状态的影响

一般认为冷冻肉中旋毛虫虫体死亡，死亡虫体伸展浮力上升，消化法不易检出。我们用改进消化法检测冷冻猪肉中哈尔滨猪株旋毛虫、收集到的虫体有两种状态：蟠曲如螺旋状或伸展。因国内外各地区旋毛虫虫株不同，对低温的耐受性也不同，为研究不同温度对不同旋毛虫株状态的影...     

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 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 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 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.