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1.
(一)流行特点 1.随着养殖业的快速发展,禽病的种类越来越多,呈现多种家禽交叉感染禽病的趋势.旧病继续发生,新病不断出现,如新城疫、传染性支气管炎、马立克、鸡白痢、禽伤寒、大肠杆菌病、葡萄球菌病、鸭瘟、小鹅瘟、球虫病等老病常年不断发生与流行.与此同时,不少新病先后暴发,如禽流感、减蛋综合征、肾型与腺胃型性传染性支气管炎、肿头综合征、肉鸡腹水综合征、鸡病毒性关节炎、雏鸭病毒性肝炎等.在这些新出现的疫病中,目前要特别重视禽流感疫病的防控工作,采取切实有效的防制措施,防止其疫病的发生与流行是我们的当务之急. 相似文献
2.
随着我国养殖业的迅速发展和国际贸易的迅猛增加，一些新的畜禽疫病如高致病性禽流感、鸡传染性贫血、禽网状内皮组织增殖病、猪繁殖与呼吸综合征等病在我国出现．一些传统疫病电呈现复杂化趋势，我国畜禽疫病防制工作仍旧面临着严峻的考验。笔者就当前困扰畜禽疫病防制工作的些问题及解决办法进行探讨。 相似文献
3.
正为解决鸡免疫抑制性疫病所带来的养鸡业风险,提升禽类产品质量,以此推动养鸡业健康发展,天水市动物疫病预防控制中心组织开展了全市鸡病流行病学调查和传染性法氏囊病、鸡传染性贫血、马立克氏、鸡病毒性关节炎、禽白血病等5种免疫抑制性疫病实验室病原学及血清学检测工作,并结合生产实践中常发生的二类、三类疫病展开专项调研和分析归纳,以此提升鸡免疫抑制性疾病防控质量。 相似文献
4.
随着我国养禽业的迅猛发展,禽病的发生也更加复杂,主要体现为禽病种类多、疫病的发生呈非典型化、多病联发或并发增多等方面.笔者对禽病发生特点和防制措施进行了分析,以提高养禽业的疫病防控能力,并促进养禽业的健康、持续发展. 相似文献
5.
我国对鸡常发多见的病毒性传染病历来采取的对策是：通过预防接种．结合兽医卫生综合防治措施失达到预防目的。随着我国商品牧业的不断发展和对外开放力度加大．一些常见禽病不断出现。当前危害养禽业发展的仍然是传染性疾病．约占禽病的75.21%．非传染性疾病只占24.79%。这就要求我们在防制工作中不断总结经验．根据当地主要疫病流行情况和特点．不断调整完善饲养畜禽金周期内主要病毒性疫病的免疫程序．做到最大限度地控制主要病毒性疫病的发生。一、鸡新城疫传统的鸡新城疫免疫可有两种程序：一种是以活疫苗进行免疫；即在0～60日龄期间… 相似文献
6.
随着我国养禽业迅猛发展,禽病的发生也更加复杂,主要体现在禽病种类多、疫病的发生呈非典型化、多病联发或并发增多等方面。本文主要通过对禽病发生特点和防制措施的分析．旨在提高养禽业的疫病防控能力,促进养禽业的健康、持续发展。 相似文献
7.
随着我国养禽业迅猛发展,禽病的发生也更加复杂,主要体现在禽病种类多、疫病的发生呈非典型化、多病联发或并发增多等方面.本文主要通过对禽病发生特点和防制措施的分析,旨在提高养禽业的疫病防控能力,促进养禽业的健康、持续发展. 相似文献
8.
近几年来，鸡传染性法氏囊病的流行也有了新的变化，发病日龄、季节、发病的禽种均与以前有较大的变化。分析鸡传染性法氏囊病的流行特点，掌握法氏囊病流行的新变化并采取相应的防制措施，对法氏囊病的防控具有重要意义。 相似文献
9.
随着青海高原地区禽类及其产品市场流通日益频繁,鸡病发生及危害不断增加,为随时掌握鸡病疫情动态和观察鸡病免疫效果,全面防控疫病,我们从2000年至2004年对该地区鸡流行病进行了连续几年的血清学检测和分析。1方法与材料1.1方法:禽流感、鸡传染性法氏囊病、鸡白痢、用琼脂扩散免疫试验,检测血清中特异性抗体。鸡新城疫用血凝抑制试验,即微量血凝试验(HI),按常规微量法检测血清中HI抗体效价。禽白血病用酶联免疫吸附试验(ELISA)。1.2材料:禽流感、鸡白痢、鸡传染性法氏囊病琼脂扩散试剂,标准抗原、阳性血清、阴性血清由哈尔滨兽医研究所… 相似文献
10.
张掖地区１２种鸡病的血清学调查魏玉明（甘肃省张掖地区兽医工作站７３４０００）近年来，我区良种鸡（蛋）引进极为频繁，商品渠道不断拓宽，给鸡病防制、检疫工作带来了很多困难病病的发生、流行日趋严重，新疫病不断增加，对养鸡生产造成了极大的危害。为了查清全区鸡... 相似文献
11.
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
13.
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
15.
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
16.
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
17.
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
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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