奶牛猝死症诊断及防制报告

2003年4～5月份浙江某养奶牛之乡发生奶牛猝死症,病程短,病势凶,历时一个月,共发病奶牛34头,死亡29头。现将病因诊断及防制结果报告如下:1 流行病学调查 4月15日早上该乡一养奶牛户发现1头怀孕母牛在饲喂黑麦草后精神欠佳,测量体温为39.5℃,户主对该奶牛注射160万单位的青霉素10瓶,之后约半个小时后倒地死亡。     

奶牛铅中毒

1　发病情况及流行病学调查1 999年 3月下旬 ,我市某区专业户郑某共养 4头黑白花奶牛 ,其中犊牛 1头 ,泌乳牛 3头。 3月 1 9日开始饲喂玉米秸杆 ,2 2日开始 1头奶牛产奶量下降 1 0 kg,2 3日 1头犊牛不采食 ,2 4日死亡 ;2 5日死亡 2头 ,2 6日死亡 1头。死前体温 3 8.2℃ ,脉搏 5     

魏氏梭菌引起奶牛猝死的综合防治措施

我区某奶牛散养户在2016年底,短短一个月中,先后发生3头奶牛突然倒地死亡的病情,笔者对奶牛发病情况开展深入细致的现场流行病学调查、尸体剖检及实验室检验,从而确诊该起奶牛猝死是由魏氏梭菌病所致.     

一例奶牛猝死病的诊断报告

2002年8月13日 ,银川市郊区掌政乡洼路村7队养殖户王某饲养的奶牛发生急性猝死 ,至8月16日共死亡奶牛5头。接到疫情报告后 ,我们立即赶赴现场 ,进行流行病学调查、尸体剖检和实验室诊断 ,现将情况报告如下 :1发病概况该场饲养奶牛29头 ,其中成母牛19头、育成牛5头、犊牛5头。从8月13～16日共发病死亡5头 ,发病率为20.7% ,死亡率为100 %。13日两头奶牛先后在两小时内突然倒地死亡 ,病程急速。另外两头病牛精神萎靡、拒食 ,畜主进行了补充体液、抗菌消炎等治疗 ,但没有效果 ,于8月15日死亡 ;16日一头奶牛又猝死。2临床症状死亡5头奶牛中 ,3头…     

猪肺疫与猪败血性链球菌病混合感染的诊断报告

1前言1990年3月上旬起．我县黄芽、若水、坪村、攀龙桥、林城、广坪、连山等乡镇暴发猪病，至7月下旬，全县病猪4630头，死亡3140头．黄芽乡翁构村3组17户农户，养猪47头，全部发病，死亡40头，死亡率85．1％，该乡抱棚村11组12户农户养猪73头，全部发病，死亡57头，死亡率达78％；若水乡股份林场猪场养猪68头，全部发病，全部死亡．由于该病传播迅速，死亡率高，经临床诊断，流行病学调查，病理学剖检和细菌学检验，确诊为诸肺病与猪败血性链球菌病混合感染，现将结果报告如下：2流行病学调查与临床诊断2．l流行病学调查我县为猪瘟免疫程序…     

一起饲喂青玉米苗引起奶牛氢氰酸中毒报告

2000年7月28日,和田市肖尔巴克乡,某农户家养的5头荷斯坦奶牛,一夜之间全部死亡,经流行病学调查,临床诊断和病理学、实验室检验综合分析,诊断为牛饲喂青玉米苗引起的氢氰酸中毒,现报告如下:     

奶牛巴氏杆菌病的诊断和治疗

奶牛巴氏杆菌病又叫“牛出血性败血症”,是一种急性、全身性传染病。 2003年10月,天津市某奶牛饲养小区的一个饲养场发生了一起急性、死亡率高的奶牛传染病,10日内先后有5头奶牛发病,死亡2头。经过流行病学调查、临床调查、病理解剖,实验室诊断为牛巴氏杆菌病。现将该病过程报告如下: (一)流行病学调查 该奶牛饲养小区共计存栏奶牛1 260头,有饲养户63个。该奶牛饲养户为新养户,2003年4月从河北省选购引进大龄育成牛。全场共有奶牛56头,引进前饲喂干玉米秸、豆饼、玉米面,引进后主要饲喂配合精饲料,每日5公斤/头;青贮玉米每日20～30公…     

犊牛巴氏杆菌病的报告

个体养殖户饲养的黑白花奶牛犊牛70余头,今年4月突然出现以肺炎、心外膜点状、刷状出血为主要症状的疾病,经流行病学调查、剖解变化、实验室检查确诊为犊牛巴氏杆菌病。1流行病学调查个体养殖户饲养黑白花奶牛犊牛70余头。4月7日,犊牛突然发病死亡。至4月10日陆续发病37头,有11头相继死亡,发病率为52.9%,病死率29.7%。本奶牛场以棉壳、干草为主要粗料,补加饲喂精料。     

贵州省某规模化猪场暴发猪伪狂犬病与大肠杆菌混合感染的诊断

<正>2014年3月,贵州省开阳县某规模化猪场送检断奶仔猪10头,其中4头死亡,6头病危,1 d后其余病危的6头相继死亡。为了了解该猪场疫病的感染状况,对该规模化猪场送检的发病仔猪进行流行病学调查、临床症状观察、病理剖检、细菌学和PCR技术诊断,确诊为猪伪狂犬病和猪大肠杆菌混合感染。报告如下。1流行病学调查该猪场断奶仔猪未免疫猪伪狂犬病疫苗,发病突然,1³ d共计有80头断奶仔猪发病,死亡     

猪伪狂犬病的病例报告

<正>2011年3月21日,福贡县某养猪户饲养的409头2～6月龄猪中,41头猪出现食欲不振,精神沉郁,体温升高,运动失调,叫声嘶哑,1～2d消瘦衰竭,死亡17头。经流行病学调查、实验室检验,确诊为猪伪狂犬病。1发病情况     

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 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 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.