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1.
奶牛子宫内膜炎是奶牛在产后普遍发生的子宫内膜的炎症,一般发病率为20％-35％,如不及时治疗,会发展成为子宫炎和化脓性子宫炎。子宫内膜炎多集中在产后2周内出现。在产后早期阶段,多达93％的牛发生子宫细菌污染,但是多数污染被自动清除,至产后46-60d时,感染率降到39％,该病对奶牛业的危害非常严重,经常造成巨大的经济损失。 相似文献
2.
奶牛子宫内膜炎是奶牛饲养业较为常见的一种多发疾病，一般发病率为20％～35％，子宫内膜炎在奶牛产后最为常见，且多集中在产后2周内。在产后早期阶段，有多达93％的奶牛发生不同程度的子宫内细菌感染，然而多数感染会被自动清除，至产后60天左右感染率将会明显降低。子宫内膜炎不仅能够影响奶牛的发情与妊娠，降低奶牛产奶量， 相似文献
3.
奶牛产后感染子宫炎较为常见，在产后的早期阶段，多达93％的奶牛发生子宫细菌污染，但经跟踪观察，到46-60d时子宫炎的感染率降到了39％，多数的污染一般被自动清除了，种种迹象表明，子宫的自洁功能是很强的。 相似文献
4.
正奶牛子宫内膜炎是奶牛产后常发病。其炎症可导致奶牛不孕,使之生产性能降低,给养牛业造成巨大的经济损失。本文介绍了奶牛子宫内膜炎的病因、症状、预防与治疗方法,以期为兽医临床用药提供理论参考。1病因1.1引起奶牛子宫内膜炎的病原微生物引起奶牛子宫内膜炎的、病原微生物有细菌、病毒、真菌、寄生虫等。细菌是引发奶牛子宫内膜炎主要的病原微生物。细菌可污染90%的产后奶牛的子宫腔。大肠杆菌、非溶血性链球菌 相似文献
5.
试验通过对15头经严怀孕奶牛，严后1～9d提取严后子宫内容物样品，进行子宫内细菌内毒素的测定，探讨产后子宫内细菌内毒素与产后子宫内膜炎的关系。结果显示，产后第3～9天，子宫内细菌内毒素升高极显著（P〈0．01）的奶牛，经后来的调查发现发生子宫内膜炎。初步认为通过早期检测产后子宫内细菌内毒素的方法为预测子宫是否发生感染提供一定的依据。 相似文献
6.
为了比较细胞免疫学和超声波诊断奶牛产后隐性子宫内膜炎的效果,试验以产后21～64d、无临床子宫内膜炎症状的奶牛为对象,利用细胞免疫学方法和B超扫描对隐性子宫内膜炎发病情况进行诊断。参测的44头奶牛中,产后2l～42d的奶牛隐性子宫内膜炎患病率为34．8％;产后43—64d的奶牛隐性子宫内膜炎患病率略有下降,为28．6％。健康的奶牛子宫回声均匀,子宫轮廓清晰,患有隐性子宫内膜炎的奶牛子宫边缘回声不完整,内缘回声不规则,子宫内出现斑点状的液性暗区和少量回声亮点。跟踪统计显示,患有隐性子宫内膜炎的奶牛平均空腹天数为146．9d,正常健康的奶牛平均空腹天数为93．9d。试验表明,细胞免疫学和B超诊断技术均可作为临床诊断奶牛产后隐性子宫内膜炎的手段。 相似文献
7.
奶牛子宫内膜炎(Dairy Cattle Endomitritis)是奶牛的一种常见病,多发病,一般发病率为20％～35％。子宫内膜炎在奶牛产后最为常见,且多在产后2周内发生,产后早期阶段多达93％的牛发生子宫内细菌感染,但多数感染会被自动清除,至产后2月左右感染率明显下降。该病不仅可 相似文献
8.
产后奶牛子宫经常受到细菌污染而导致炎症过程,严重的可造成奶牛不孕.然而以往对奶牛产后子宫炎性疾病的分类及描述缺乏统一的标准.本文通过回顾子宫复旧的细菌学进程及易感因素,为奶牛产后子宫炎性疾病提供一个清晰的分类,即产褥期子宫内膜炎、临床型子宫内膜炎、子宫积脓及隐性子宫内膜炎;同时总结其病理特征、诊断要点. 相似文献
9.
奶牛子宫内膜炎是奶牛最常见的产科病之一，是引起奶牛不孕的主要原因。据报道，每年美国因奶牛不孕症造成的经济损失近2．5亿美元；英国报导不孕牛中约95％是由于子宫内膜炎引起，慢性子宫内膜炎可占不孕牛的60．1％-92．0％。Barbu等（1980）报道，产后不孕的牛中约有70％患有慢性或隐性子宫内膜炎。在国内，瞿自明等1983-1985年对北京、上海、南宁、兰州等16个城市41个奶牛场调查了9754头适龄奶牛，有1684头发生子宫内膜炎（17．26％），占不孕牛的68．34％：东北地区奶牛场的奶牛子宫内膜炎占奶牛病的20％-30％。2006年笔者对青海某养殖小区产后不孕的91头奶牛进行调查，发现有74头是子宫内膜炎引起的，占不孕的81．31％。奶牛子宫内膜炎造成大量奶牛不孕，缩短了奶牛的使用寿命，不及时正确治疗，将延长奶牛的产犊间隔，甚至被淘汰，造成较大的经济损失。笔者经过多年临床治疗，就如何治疗奶牛子宫内膜炎谈谈自己的体会，仅供参考。 相似文献
10.
为了比较细胞免疫学和超声波诊断奶牛产后隐性子宫内膜炎的效果,试验以产后21~64 d、无临床子宫内膜炎症状的奶牛为对象,利用细胞免疫学方法和B超扫描对隐性子宫内膜炎发病情况进行诊断。参测的44头奶牛中,产后21~42 d的奶牛隐性子宫内膜炎患病率为34.8%;产后43~64 d的奶牛隐性子宫内膜炎患病率略有下降,为28.6%。健康的奶牛子宫回声均匀,子宫轮廓清晰,患有隐性子宫内膜炎的奶牛子宫边缘回声不完整,内缘回声不规则,子宫内出现斑点状的液性暗区和少量回声亮点。跟踪统计显示,患有隐性子宫内膜炎的奶牛平均空腹天数为146.9 d,正常健康的奶牛平均空腹天数为93.9 d。试验表明,细胞免疫学和B超诊断技术均可作为临床诊断奶牛产后隐性子宫内膜炎的手段。 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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