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1.
奶牛真胃变位是指真胃的解剖位置发生变化,引起消化机能障碍,导致营养不良的一种内科疾病.以前奶牛真胃变位在兽医临床上比较少见,但最近几年发病率较高.笔者自2007～2009年在临床实践中共参与9例奶牛真胃变位的诊治工作,治愈率为90%.现将奶牛真胃变位的诊方法阐述如下： 相似文献
2.
通过对河北省冀东地区5个养殖区1 962头奶牛的调查,研究了奶牛真胃左方变位的发生与采食量、产乳量和体况评分的关系。结果表明,该地区奶牛真胃左方变位发病率为1.60%-4.61%（平均1.90%）,其采食量、产奶量和体况评分极显著低于健康对照牛（P〈0.01）,该病主要发生于年产奶量在6 500-8 000 kg的高产奶牛,产后突然急剧增加精料可能是该地区奶牛真胃左方变位的主要原因。 相似文献
3.
正真胃变位是奶牛最常见的真胃疾病,近几年来随着奶牛养殖业的迅速发展,该病的发病率和死亡率也呈上升趋势,尤其是年轻高产奶牛发病率最高,造成的经济损失极其严重。此病通常是指真胃的正常解剖学位置发生改变,形成机械性转移,引起消化机能障碍,导致营养失调。真胃变位分为左方变位和右方变位,大多数病例是左方变位,占真胃变位的85%以上。奶牛真胃变位在泌乳期的前6周为发病高峰,但可散发于泌乳和怀孕期的任何阶段,以初产青年母牛及4~ 相似文献
4.
真胃的正常解剖学位置改变,称为真胃变位。真胃变位是奶牛的一种消化机能障碍性疾病。真胃变位分两种类型:左方变位和右方变位,也称真胃扭转。粗饲料是饲养奶牛的基础,精料是饲喂奶牛的一种补充料。通过调查、统计分析表明,奶牛真胃变位的发生与奶牛饲喂高精料有密切关系。科学合理的平衡日粮精粗比和饲喂技术能有效降低奶牛真胃变位的发病率。 相似文献
5.
正奶牛真胃变位是奶牛常见的一种消化系统疾病,会导致消化、吸收和排泄等功能的紊乱。临床上主要分为左方变位和右方变位。左方变位是指真胃通过瘤胃下方移到左侧腹腔,置于瘤胃和左腹壁之间。右方变位是指真胃向后方扭转,置于肝脏和右侧腹壁之间。奶牛真胃变位以左方变位发病率较高,多发于4~6岁的奶牛,常见于泌乳早期,大部分确诊的病例发生于产后1个月内。近年来,奶牛真胃变位的发病率逐年增高, 相似文献
6.
奶牛真胃变位是奶牛真胃的解剖位置发生改变引起消化机能严重紊乱、导致营养代谢失调的急性外科病，可分为左方变位和右方变位。临床上以真胃左方变位最常见，随着奶牛集约化饲养规模的扩大，其发病率有逐年增加的趋势。国外早在50年代就有该病的报道，特别是一些奶牛养殖业发达的国家。黑白花奶牛的发病率高达1．5％以上。而我国对本病的研究相对滞后，一方面原因是我国奶牛饲养相对粗放，奶牛真胃变位的发病率不高：另一方面是我国兽医工作者对真胃变位的认识不足。许多真胃变位病例得不到确诊。近几年来，随着我国奶牛饲养量的扩大，集约化程度不断提高，再加上大量饲喂精料，盲目追求高产，奶牛真胃变位的发病率逐年上升，因此，人们对本病的认识也不断深化。尤其是我国大中城市的近郊区，该病的发病率很高。个别地区发病率达8％-10％，其中产后发病的高达85％以上，给奶牛业造成严重的经济损失。尽管国内外学者对该病研究报道很多，但多限于诊断和治疗的研究，有关病因和发病学的研究极少，发病机理尚不完全清楚，每年仍有大量奶牛产奶量下降甚至死亡。部分治愈的奶牛仍可复发本病或者是治愈后产奶量持续低下。基于此点，有必要对该病开展深入研究。本文以真胃左方变位为主，综述其发病原因、发病机制、临床诊断要点和治疗方法，以供兽医工作者和研究人员参考。 相似文献
7.
近年来,一些奶牛场一味追求高产,而使奶牛日粮中精料的饲喂量大大提高,从而导致了奶牛真胃变位的发病率也相应上升,某些奶牛场曾因饲料结构的控制不当,头胎产后牛真胃变位的发病率达10%以上.通过调查和比较分析,对奶牛各个生长时期的饲料进行控制,可以将真胃变位的发病率控制在一个合理的范围内. 相似文献
8.
奶牛真胃变位是指真胃正常解剖位置发生改变引起消化道梗阻,导致消化机能障碍的内科疾病,包括真胃左方变位和真胃右方变位。随着奶牛集约化饲养的扩大和产奶量的提高。奶牛真胃变位的发病率逐渐升高,引起畜牧兽医界的关注和重视。真胃左方变位用手术方法治疗疗效确实,见效快。 相似文献
9.
最近几年,随着奶牛饲养规模和饲养数量不断增加,奶牛的生产性能进一步提升,经济效益显著提高,奶牛真胃变位的情况时有发生,奶牛真胃左方折叠和左方扭转的发病率呈现高发趋势。由于引起奶牛真胃变位的发病原因十分复杂,在奶牛真胃变位的同时还会引起很多并发疾病,尤其是真胃变位并发盲肠变位对奶牛的危害十分严重,会严重影响到奶牛生产性能。基于此,笔者主要结合实际情况,就奶牛真胃左方变位并发盲肠变位的诊断和治疗进行了分析。 相似文献
10.
随着奶牛集约化养殖的规模不断扩大，奶牛真胃变位（displacement of the abomasums, DA）的发病率也在逐年上升，成乳牛群的年发病率在2～5%左右。奶牛真胃变位已成为危害奶牛养殖业的重要疾病之一。 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 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
18.
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
19.
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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