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1.
正仔猪红痢是C型魏氏梭菌引起的一种高度致死仔猪的肠毒血症,又称为仔猪梭菌性肠炎或者仔猪传染性坏死性肠炎。主要的感染群体为仔猪,尤其是3日龄以内的仔猪,病死率极高,发病仔猪以血便为主要症状。1流行病学仔猪红痢的感染目标主要是仔猪,大多为3日龄以内的仔猪,7日龄以上的仔猪发病极少见,无明显的的季节性、性别和品种性,一年四 相似文献
2.
仔猪腹泻是当前危害养猪业最严重的仔猪疾病之一,也是引起仔猪死亡的主要疾病。据调查,近年来,仔猪因腹泻死亡数占仔猪死亡总数的38.9%;30kg以下的仔猪,年 相似文献
3.
正提高仔猪成活率是提高猪场养殖效益的前提和基础,搞好仔猪饲养管理和猪病防控是提高仔猪成活率的重要手段且二者相互关联、相辅相成,那么怎样才能搞好这两方面的工作呢?一、搞好仔猪的饲养管理搞好仔猪饲养管理是搞好仔猪疫病预防和控制的基础,搞好仔猪疫病的预防和控制是提高仔猪成活率的重要条件,仔猪饲养管理主要包括 相似文献
4.
仔猪腹泻是一种典型的多因素性疾病.引起仔猪腹泻的病原种类繁多,病性复杂,有多种病原混合感染,长期以来仔猪腹泻是引起仔猪生长受阻和仔猪高死亡率的重要原因,仔猪腹泻的防治一直是一个引人注目的世界性问题.据调查,仔猪因腹泻死亡占仔猪死亡总数的39.8%,给养猪生产造成很大的经济损失. 相似文献
5.
断奶仔猪的管理,特别是断奶后的第1周,是仔猪管理环节的“重中之重”,因为断奶是仔猪自出生后的最大应激因素。仔猪断奶后的饲养管理技术直接关系到仔猪的生长发育,搞不好会造成仔猪生长发育迟缓、仔猪腹泻、发生水肿病,甚至死亡等严重后果。本文将讨论仔猪断奶后易出现的... 相似文献
6.
仔猪腹泻的病因大致分为非传染性腹泻与传染性腹泻两大类。防治仔猪腹泻,主要应采取综合防治和健全的生物安全措施,良好的饲养管理是防治仔猪腹泻的基础,针对性疫苗和敏感药物的正确选用是防治仔猪腹泻的技术关键。1仔猪腹泻的现状仔猪腹泻是一种典型的多因素性疾病。引起仔猪腹泻的病原种类繁多,病性复杂,有多种病原混合感染,长期以来仔猪腹泻是引起仔猪生长受阻和高死亡率的重要原因,仔猪腹泻的防治一直是受关注的世界性问题。据调查,仔猪腹泻主要发生在1~3月龄,尤其是1~3日龄的仔猪,饲养管理和生物安全不严,造成仔猪腹泻发病率高达50%,死亡率15%~20%,腹泻引起的死亡占仔猪死亡总数的40%。 相似文献
7.
<正>仔猪水肿病常发生于断奶后仔猪,特别是使用配合饲料或用预混料拌料饲喂的仔猪,时常发生仔猪水肿病,本文简述了仔猪水肿病的饲料诱因与预防。1仔猪水肿病的饲料诱因1.1直接由饲料引起仔猪水肿病,主要是给仔猪饲喂的饲料品质不良,如饲喂仔猪饲料蛋白过高,酸碱度过大,饲料的抗原性强,极易诱发仔猪发生水肿病。1.2间接由饲料引起仔猪水肿病,主要是给仔猪突然换料或者给仔猪饲喂的饲料受到致病性大肠杆菌污染引起。 相似文献
8.
<正>仔猪黄白痢是仔猪黄痢和仔猪白痢的合称,是由大肠埃希氏菌引起的仔猪哺乳期常见的肠道传染性疾病。仔猪黄痢又称早发性大肠杆菌病,主要危害出生后1周龄内的仔猪,特别是1~3日龄仔猪,尤其以头胎青年母猪所产仔猪的发病率最高;仔猪白痢又称迟发性大肠杆菌病,主要危害10~30日龄仔猪,为非败血性、急性肠道传染病,死亡率相对较低,但会严重影响仔猪生长发育,降低饲料报酬而造成较大经济损失。 相似文献
9.
哺乳仔猪是指处于哺乳阶段的仔猪。仔猪的哺乳阶段正是仔猪由母体内的寄生生活向独立生活的过渡时期,仔猪出生后,外界的各种环境因素不断刺激仔猪,从而使仔猪总是 相似文献
10.
<正>新生仔猪在猪的养殖过程中是非常重要的,仔猪的正常成长是养猪的基础。然而仔猪的养殖又是非常困难的,主要表现在仔猪消化能力差、免疫力低下、保温能力非常差。虽然它的生长速度快,但是这些养殖难题也是仔猪养殖的一大障碍。消化能力差、免疫力低下、保温能力差这些都是仔猪容易生病的原因,所以,要想做好仔猪的养殖,首要工作就是做好新生仔猪常见病的诊断和防治。1仔猪低血糖症1.1病症诊断仔猪低血糖症在仔猪的常见病中属于比较容 相似文献
11.
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
12.
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
13.
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
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 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
17.
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
18.
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
20.
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
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