山西省部分县畜禽寄生虫感染情况调查初报

2002年10—12月在山西省11个县开展了畜禽寄生虫普查，调查这些县中130乡内的牛112头、猪293头、羊308只、鸡619只、兔298只的寄生虫感染种类和感染程度，     

吐尔尕特口岸区域牛、羊体内寄生虫调查研究

为掌握吐尔尕特口岸区域内牛、羊体内寄生虫情况,采用常规剖检法,对吐尔尕特口岸范围内的6头牦牛、14只绵羊作为调查对象进行体内寄生虫检查,经检查绵羊感染寄生虫13只,从绵羊体内检出寄生虫9种,感染率92.8%,牦牛感染寄生虫6头,牦牛体内检出4种,感染率100%。证明口岸区域内牛、羊寄生虫感染率较高,其中牛、羊棘球蚴、细颈囊尾蚴、肝片吸虫为人畜共患病,对今后进一步加强口岸范围内动物寄生虫病的疫情监测和当地牛羊出口检验检疫工作提供了依据。     

猪、牛寄生蠕虫的调查报告

为了搞清我县猪、牛寄生虫的种类和危害程度，以便采取有效措施，有计划开展防治工作，1999年我们进行了猪、牛寄生虫的调查。1 调查方法 在全县16个乡（镇）中随机抽出1／3的乡（镇）列为调查范围，然后调查1／3的村，在其中调查1／3的村小组，采用饱和盐水漂浮法和水洗自然沉淀法处理粪便进行镜检。2 调查结果 生猪共调查了15个村，92个村小组，1 503头猪，检出阳性猪（感染寄生虫病）295头，感染率为19．62％；耕牛共调查了18个村，97个村小组，362头牛，检出阳性牛82头，感染率为22．65％。生猪感染的体内寄生虫共7种，即：蛔虫、胃虫、…     

雷山县牛羊寄生虫区系调查及防治对策

为了摸清全县牛、羊寄生虫的感染种类、分布状况、流行情况、感染率、优势虫种以及危害程度。我们于１９９８年～１９９９年对全县五个乡镇２０个村组农户自养的牛、羊进行寄生虫区系调查，共剖检牛２０头、羊２０只，共捡获牛寄生虫２３８２条，羊寄生虫４６０条。并对３５头牛、５７只羊的粪便进行虫卵检查，为今后我县牛、羊寄生虫病防治工作提供了一定的科学依据。１自然状况及饲养方式雷山县位于黔东南州西南部，地跨东经１０７°５５'～１０８°２２'和北纬２６°０２'～２６°３４'之间，东邻台江、剑河、榕江，南接三都，西接丹寨，…     

贵州省铜仁地区5县径牛寄生虫区系调查

对铜仁地区５个县（印江、江口、松桃、沿河、思南）的１８２头役牛采用寄生虫学完全剖检法检查各类寄生虫,另采５个县、３５个乡（镇）、８７个村的１５３７头役牛粪便进行虫卵检查。栓获的寄生虫经鉴定共计６９种,隶属于７纲１３目２５科３７属,其中吸虫３２种,绦虫３种,线虫２０种,原虫８种,蜘蛛昆虫６种;粪便虫卵检查中共检出各类虫卵１２种。调查确定,肝片形吸虫等１０种寄生虫为本地区役牛寄生虫优势种;残盘残盘吸虫     

贵州省3地（市）牛寄生虫调查

１９９７年,在贵州省遵义、毕节、铜仁３地（市）、９县开展了牛寄生虫病调查,共检查粪样９０００份,检获虫卵、幼虫１６种,牛寄生虫感染率达１００％;剖检牛２７０头,其中黄牛１７０头,水牛１００头;检获各类寄生虫虫体６５种,其中吸虫３１种,绦虫３种,线虫１９种,蜘蛛昆虫７种,原虫５种,分别隶属于７纲、１４个目、２５个科、３８个属。     

贵州省平塘县牛羊寄生虫病防治

1996～1998年为在全县开展牛羊寄生虫病综合防治，调查了牛羊寄生虫种类，并查出耕牛寄生虫75种，山头寄生虫66种，选用阿福丁，丙硫咪唑、硝氯酚、依维菌素、盐酸左旋咪唑为驱虫药。三年共驱虫耕牛126159头次，山头32800只次，从牛、羊增重、增加出栏、减少死亡、提高成活率等总获效益584.4758万元。     

驱除牛肝片形吸虫及消化道圆形线虫与体增重相关性的研究

通过寄生虫区系调查和临床检验，发现肝片形吸虫及消化道圆形线虫感染普遍。因此，应用硝氯酚和左旋咪唑给牛驱虫，并观察牛的虫卵减少率与体增重的关系。结果用药组的体增重与对照组比，硝氯酚组平均多增重２６．１ｋｇ／头；左旋咪唑７８．９ｋｇ／头。     

辽宁省凌源市动物寄生虫感染情况的调查

根据辽宁省动物防疫站寄生虫调查方案 ,对凌源市动物寄生虫感染情况进行了调查 ,现将结果报告如下。1　调查材料与方法1 1　调查对象　共调查各种畜禽 42 6匹 (头、只、羽 ) ,其中马 78匹、牛 80头、羊 1 0 1只、猪 1 0 9头和鸡 5 8羽。1 2　调查方法　采取剖检法 (局部、全身 )和粪检法进行。2　调查结果2 1　寄生虫种类　通过虫体鉴定 ,初步确定全市动物感染体内外寄生虫共 63种 ,分属于 5门 6纲 2 4科 3 3属。其中马属动物感染寄生虫种类为 1 4种、牛 1 2种、羊 1 7种、猪 1 3种和鸡 7种。主要寄生虫种类为原生动物 (包括鸡脆弱艾美尔…     

毕节市牛羊寄生虫区系调查及防治

为了摸清全市牛、羊寄生虫的感染种类、分布状况、流行情况及危害程度,我们于１９９３～１９９４年在全市２８个镇、乡的２５３个村３２３个村民组农户自养的牛、羊进行了寄生虫区系调查．共剖检牛１９头、羊３４只,共检获牛寄生虫４０８条,羊寄生虫１３０１５条,并对１２１８头牛、 １２７４只羊的粪便进行虫卵检查,为我市牛、羊寄生虫病防治工作提供了一定的科学依据。根据调查结果我市投入了一定的人力和物力,进行强化科普宣传．技术培训,制定防治规划．实施综合防治,取得了较好的效果,现整理报告如下：１自然概况 毕节市位于贵…     

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.