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1.
规模蛋鸡场疫病风险评估模型是用于规模蛋鸡场疫病发生的可能性和发生程度的评价方法,是一种定性的评估,通过对规模蛋鸡场的选址、场内布局、设施设备、饲养管理及卫生防疫、免疫、疫情发生史和疫病监测七个方面的风险因子进行评价,可发现规模蛋鸡场疫病发生的影响风险因子和风险等级,及时帮助指导规模蛋鸡场采取整改措施,消除风险因子,降低风险等级,有利于实现"重大动物疫情力争不发生,确保不流行"的防控目标。 相似文献
2.
<正>2014年2月13日,贵州省安顺市西秀区鲊陇村3个蛋鸡场发生禽流感H5N1疫情。为了及时扑灭疫情,扑杀了鲊陇蛋鸡场及周围3千米范围内的30余万羽禽类。此次疫情的发生,暴露出了安顺市在动物疫病防控方面存在的问题。为了总结西秀区鲊陇蛋鸡场禽流感疫情防控工作,为提升禽流感防控水平提供参考,现对安顺市动物疫病防控工作反思如下:一、应吸取的教训1.采样监测力度不够。(1)监测数量少。在2014年 相似文献
3.
2014年2月13日，贵州省安顺市西秀区鲊陇村3个蛋鸡场发生禽流感H5N1疫情。为了及时扑灭疫情，扑杀了鲊陇蛋鸡场及周围3千米范围内的30余万羽禽类。此次疫情的发生，暴露出了安顺市在动物疫病防控方面存在的问题。 相似文献
4.
2022年2月云南省元江县某农户饲养的山羊出现疑似羊痘病情，袭击率为16.91%(46/272)，病死率为45.65%(21/46)。为确定病因，防止病情扩散，开展了紧急流行病学调查。综合病羊临床症状以及现场调查和实验室检测结果，确诊本起疫情为输入性羊痘疫情。通过采取病羊与健康羊群隔开饲养、紧急免疫、对症治疗、消毒、加强饲养管理等干预措施，病情得到有效控制。分析认为，养殖户疫病防控意识淡薄，缺乏生物安全防范意识，调入携带病原羊只混群饲养等是引发病情的主要原因。本次病情警示，养殖场应加强生物安全管理，做好未出售羊群返场的隔离检疫，同时要加强饲养管理，减少应激因素，以预防疫病发生。 相似文献
5.
目的:甘肃省某养猪大户报告其育肥猪发生连续多天大批死亡后,对其饲养管理、调入调出和疫苗接种等情况进行紧急流行病学调查,对病死猪进行剖检,对发病猪采样送检,调查分析其发病原因。结果:临床诊断发现发病育肥猪体温升高,食欲废绝,咳嗽,耳朵、腹下和四肢内侧皮肤呈现蓝紫色;剖检病死猪发现病猪皮下脂肪、全身浆膜、黏膜和实质器官出血,包皮积尿,心肌坏死,肝脏表面有出血性坏死灶,脾脏不肿大,边缘有楔形梗死灶,结肠、盲肠黏膜表面溃疡灶呈纽扣状;送检病料经省动物疫病预防控制中心诊断室检测确诊为经典猪瘟,紧急流行病学调查发现其饲养管理方式落后,猪瘟免疫程序不当,存在寒冷应激等诱因。根据紧急流行病学调查结果,最后确诊为经典猪瘟,因当地畜牧兽医主管部门接报告后封锁隔离等处置及时,未发生疫情扩散。结论:通过紧急流行病学调查,确认此次疫情系育肥猪猪瘟免疫失败致使经典猪瘟感染,导致育肥猪大批死亡。寒冷应激、饲养管理落后均可能是导致发病的原因。 相似文献
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<正> 1989年12月中旬,三明市某蛋鸡场的5300只产蛋鸡群中发生以眼结膜炎为主症的疫病,笔者对此疫情进行现场调查,病鸡剖检和实验室诊断,证实该疫病由于感染鸡新城疫病毒所致。鉴于此种新城疫病例在国内报道较少,现将结果报告如下。1 流行概况及临床症状该场有一幢鸡舍饲养:16月龄依莎蛋鸡4300 相似文献
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2020年1月3日,某猪场部分生猪出现腹泻症状,3 d后达发病高峰,波及全场,并伴有部分生猪死亡,袭击率为60.66%,病死率为6.88%。为探寻病因,采取现场调查与实验室检测相结合的方式,对此次猪群腹泻进行了调查,综合推断此次暴发是由大肠杆菌、沙门氏菌、志贺氏菌引起的细菌性腹泻及由应激因素引起的应激性腹泻,饮入污水、断水应激、寒冷应激是导致本次猪群腹泻的主要原因。据此,提出了拌料饲喂抗生素、清洗消毒圈舍和饮水设施、强化饲养管理等干预措施,并有效控制了疫情。调查提示,加强饲养管理,减少寒冷、缺水引起的应激,保持清洁饮水,对预防猪群腹泻具有十分重要的意义。 相似文献
8.
羊魏氏梭菌病是以发病急、病程短、死亡快、病死率高为主要特征的一种疫病,其发病和饲养管理条件、营养平衡、应激因素、环境消毒及动物疫病综合防控措施等有很大关系。为切实做好羊梭菌病的防控工作,及时掌握疫病流行规律和疫情动态,增强重大动物疫情预警预报能力,有效防范羊梭菌病的暴发和流行,我县各乡镇畜牧兽医站工作人员及村级防疫员对全县的羊存栏量及羊梭菌病疫苗免疫情况、发病情况进行了流行病学调查,并总结出治疗有效中药配方。 相似文献
9.
2017年11月,云南省玉溪市某乡镇引进的167只种羊在隔离饲养期间出现发热、流鼻涕、咳嗽、流产、死亡等情况,累计发病159只,袭击率为95.21%(159/167),病死率为40.25%(64/159)。为调查本起疫情的发生原因,开展了紧急流行病学调查。综合病羊临床症状、流行病学情况和实验室检测结果,确诊本起疫情为支原体感染引起的山羊传染性胸膜肺炎。分析认为,引种不规范、天气变化应激、饲养管理不到位等是引发疫情的主要原因。通过采取对症及对因治疗、消毒、加强饲养管理等干预措施,疫情得到了有效控制。本次暴发调查提示,引入种羊时要进行规范的隔离检疫,同时要加强饲养管理,减少应激。 相似文献
10.
规模化蛋鸡场采用规模化笼养后,防疫管理成为蛋鸡场生产成败的关键,疫病发生不仅会增加养殖成本,而且会造成一定的经济损失。做好规模化蛋鸡场疫病的综合防控工作,能净化饲养环境,确保蛋鸡处于安全状态,提高蛋鸡的健康水平和抗病能力,杜绝或减少疫病的发生,最大限度地发挥蛋鸡的生产性能,获得最大的经济效益。本文就规模化蛋鸡场疫病综合防控措施进行综述、探讨。 相似文献
11.
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. 相似文献
13.
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. 相似文献
14.
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%). 相似文献
15.
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. 相似文献
17.
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. 相似文献
18.
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. 相似文献
19.
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%). 相似文献
20.
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. 相似文献
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