猪细小病毒病的防治

在我国一些地方的中小型养猪场,胎猪出生后死亡的现象越来越突出,损失较大.其中一种危害严重的疾病,就是猪细小病毒病.猪细小病毒病(porcine parvovirus infection,PPI)又称猪繁殖障碍病.是由猪细小病毒引起的一种猪的繁殖障碍病.以怀孕母猪发生流产、死产、木乃伊胎为特征.     

猪副黏病毒病家族

猪副黏病毒病(porcine paramyxovirus disease)是由副黏病毒引起的一系列猪病,包括蓝眼病(blue eye disease)、尼帕病毒病(nipah virus disease)、梅那哥病毒病(menangle virus disease)及我国出现的猪副黏病毒病(本研究室称之为猪源禽1型副黏病毒病,即猪源新城疫),给养猪业带来了重大损失.本文简单介绍猪副黏病毒病家族各成员的病原学、流行病学及临床症状.     

猪腺病毒感染的诊断与防制

猪腺病毒感染(porcine adenoviruses infection)是由猪腺病毒引起的仅发生于猪的一种传染病.该病毒分布广、感染率高.一般多隐性感染,当猪免疫力低下时,可引起下痢、脑炎、肺炎等.主要从病原、流行病学、临床症状、诊断及防制等方面对该病进行综述,以期为科学诊断和预防该病的发生提供参考.     

与猪细小病毒病易混淆疾病的鉴别诊断

猪细小病毒病(porcine parvovirus disease)主要引起母猪的繁殖障碍,除此之外,猪瘟、猪伪狂犬病、猪流行性乙型脑炎、猪繁殖与呼吸障碍综合征(Porcine reproductive and respiratory syndrome,PRRS)、猪钩端螺旋体病和衣原体等也均能引起母猪的繁殖障碍.这些疾病不仅影响猪的繁育,而且有些病能够垂直传播,给养猪生产带来严重的经济损失.本文将从流行病学、临床症状特征、病理学诊断等几个方面对与猪细小病毒病易混淆疾病进行区别,希望对猪病的防治有所帮助.     

遵义地区猪细小病毒病的血清学调查

猪细小病毒病(porcine panvovirus disease,PPVD)是由猪细小病毒(porcine parvovirus,PPV)引起妊娠母猪流产、死胎、木乃伊胎和产弱仔为特征的繁殖障碍性疾病,在我国各地均有发生,给养猪业造成了重大经济损失.为及时掌握猪细小病毒病在该地区的流行动态,制定科学合理的防治方案,我们于2006年10月份对遵义地区7个县(市)部分规模养殖场和散养户随机采取271份猪血清进行了血清学检测,现将结果报告如下.     

猪δ冠状病毒基因组学及诊断技术研究进展

猪δ冠状病毒(porcine deltacoronavirus,PDCoV)是引起猪δ冠状病毒病(PDCoVD)的病原,是近年来发现的一种新型的引起猪腹泻等肠道症状的病毒。本文对该病毒基因组学引起的临床症状及诊断方法研究进展进行综述,以期对该病的研究及诊断提供参考。     

山东省仔猪流行性腹泻感染状况调查及其S基因的遗传进化分析

<正>猪流行性腹泻(porcine epidemic diarrhea,PED)是由猪流行性腹泻病毒(porcine epidemic diarrhea virus,PEDV)引起的猪的一种以急性肠炎、呕吐、水样腹泻和脱水为主要特征的肠道传染性病毒病。自2010年冬季以来,由PEDV引起的猪流行性腹泻在山东省部分地区暴发,引起哺乳仔猪严重呕吐、腹     

猪圆环病毒及疫苗使用效果

猪圆环病毒型(porcine circovirus)是引起猪圆环病毒病(porcine circovirus desease,PCVD)的主要病原,其分为PCV1和PCV2。猪圆环病毒主要引发断奶仔猪多系统衰竭综合征(PMWS)、育肥猪皮炎与肾病综合征(PDNS)等无法治愈的疾病,该病的感染给全世界养猪业造成巨大损失。破坏猪体的免疫系统的猪圆环病毒2型,可以引起严重的免疫抑制。发病后常能引起病猪出现混合感染与继发感染,其中包括细菌和病毒、病毒与病毒之间相互感染,因此该病不容易进行诊断和治疗,此病的发生严重威胁猪只的健康。本文对病毒的致病机理、临床症状、病理变化、诊断和防制对策等方面的研究进展进行了简要综述。     

猪副黏病毒病家族

猪副黏病毒病（porcine paramyxovirus disease）是由副黏病毒引起的一系列猪病，包括蓝眼病（blue eye disease）、尼帕病毒病（nipah virus disease）、梅那哥病毒病（menangle virus disease）及我国出现的猪副黏病毒病（本研究室称之为猪源禽1型副黏病毒病，即猪源新城疫），给养猪业带来了重大损失。本文简单介绍猪副黏病毒病家族各成员的病原学，流行病学及临床症状。     

一起圆环病毒病继发副猪嗜血杆菌病的诊治与体会

正猪圆环病毒病(Porcine circovirus infection)是指以Ⅱ型圆环病毒为主要病原,单独或继发(混合)感染其他致病微生物的一系列疾病的总称。其特征是引起淋巴系统疾病、渐进性消瘦、呼吸道症状,造成患猪免疫机能下降,生产性能降低。主要临床症状为仔猪先天性震颤、断奶猪消瘦、呼吸急促、咳喘、黄疸腹泻、贫血等~([1])。猪传染性胸膜肺炎是由副猪嗜血杆菌(Haemophilus parasuis,HPs)引起的猪的疾病,表现为猪的多发性浆膜炎、关节炎,引起以肺的浆膜、心     

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 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 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.

     

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 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%).