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1.
《中国草食动物科学》2017,(5)
子宫内膜炎是一种常见、对奶牛养殖业危害严重的生殖疾病,为弄清河南省清丰县奶牛子宫内膜炎的发病规律,笔者于2016年1月—2017年1月对该地区4个奶牛养殖场进行了子宫内膜炎发病情况调查。结果显示:该地区经产奶牛子宫内膜炎发病率19.60%,其中以夏、秋季发病率较高,分别为23.17%和26.98%;头胎奶牛发病率较低,6胎以上奶牛发病率最高。 相似文献
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尼玛 《青海畜牧兽医杂志》2009,39(6):53-54
奶牛子宫内膜炎是奶牛的常见病和高发病,给奶牛产业带来了严重的经济损失。导致奶牛患子宫内膜炎的因素很多且复杂。奶牛子宫内膜炎的类型多、症状复杂。本文通过对奶牛子宫内膜炎病因及临床症状的分析,提出合理治疗和预防奶牛子宫内膜炎的具体措施。 相似文献
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子宫内膜炎是一种常见、对奶牛养殖业危害严重的生殖疾病,为弄清遂平县奶牛子宫内膜炎的发病规律,本次研究于2016年1月到2017年1月对该地区4个奶牛养殖场进行子宫内膜炎病发病情况调查.结果显示:遂平县经产奶牛子宫内膜炎发病率为19.60%,其中以夏、秋季发病率较高,分别为23.17%和26.98%;头胎奶牛发病率较低,6胎以上奶牛则发病率最高. 相似文献
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奶牛子宫炎发病情况调查及综合性应对措施 总被引：1，自引：0，他引：1
奶牛子宫内膜炎是危害奶牛业健康发展的常见产科疾病，也是奶牛的三大主要疾病之一。为了掌握奶牛子宫内膜炎发病情况与现地防治措施，从而有效控制奶牛子宫内膜炎的发生，提高奶牛业的经济效益，保障奶牛饲养业的健康发展，作者统计分析了1990-2003年黑龙江省垦区海林农场、8511农场、855农场、庆丰农场等6个农场的奶牛子宫内膜炎临床资料，同时结合病原菌分离鉴定结果，现地饲养管理状况，奶牛子宫内膜炎发生特点、发病规律、防治措施，提出了防治奶牛子宫内膜炎的综合性防治措施。 相似文献
5.
一、奶牛子宫内膜炎的发病原因奶牛子宫内膜炎的防治具有重要的临床意义,要提高防治效果,必须了解其发病机理,才能做到有的放矢。奶牛子宫内膜炎的发病机理,主要有以下几点:1.免疫力低下。子宫内膜炎是子宫局部的炎症,虽然许多因素都能诱导发病,但是致病因素如何影 相似文献
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奶牛子宫内膜炎是危害奶牛业发展的重要疾病之一,一旦发病不仅影响繁殖率,造成奶牛屡配不孕,而且直接影响奶牛以后的生产效益.通过对奶牛子宫内膜炎的发病原因、临床症状的介绍,提出了奶牛子宫内膜炎的预防及治疗措施. 相似文献
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孟凡娟 《畜牧兽医科技信息》2015,(5)
<正>奶牛子宫内膜炎是奶牛最容易患上的繁殖障碍性疾病,发病率较高,一般慢性发病,所以人们经常会忽略这种疾病,从而给奶牛养殖户带来巨大的利益损耗,是对奶牛养殖业影响较大的疾病之一。因此,对奶牛子宫内膜炎病理及中西医治疗用药的研究意义重大。1奶牛子宫内膜炎的危害及病因1.1子宫内膜炎的危害子宫内膜炎一般在母牛生产后发病,虽然不会导致死亡但发病的概率很大,对奶牛的繁殖和生产性能带来了较大的 相似文献
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一/奶牛子宫内质炎的发病原因
奶牛子宫内膜炎的防治具有重要的临床意义,要提高防治效果,必须了解其发病机理,才能做到有的放矢。奶牛子宫内膜炎的发病机理,主要有以下几点： 相似文献
11.
Krizsan SJ Nyholm L Nousiainen J Südekum KH Huhtanen P 《Journal of animal science》2012,90(9):3162-3173
The objective of this study was to compare the application of different in vitro and in situ methods in empirical and mechanistic predictions of in vivo OM digestibility (OMD) and their associations to near-infrared reflectance spectroscopy spectra for a variety of forages. Apparent in vivo OMD of silages made from alfalfa (n = 2), corn (n = 9), corn stover (n = 2), grass (n = 11), whole crops of wheat and barley (n = 8) and red clover (n = 7), and fresh alfalfa (n = 1), grass hays (n = 5), and wheat straws (n = 5) had previously been determined in sheep. Concentrations of indigestible NDF (iNDF) in all forage samples were determined by a 288-h ruminal in situ incubation. Gas production of isolated forage NDF was measured by in vitro incubations for 72 h. In vitro pepsin-cellulase OM solubility (OMS) of the forages was determined by a 2-step gravimetric digestion method. Samples were also subjected to a 2-step determination of in vitro OMD based on buffered rumen fluid and pepsin. Further, rumen fluid digestible OM was determined from a single 96-h incubation at 38°C. Digestibility of OM from the in situ and the in vitro incubations was calculated according to published empirical equations, which were either forage specific or general (1 equation for all forages) within method. Indigestible NDF was also used in a mechanistic model to predict OMD. Predictions of OMD were evaluated by residual analysis using the GLM procedure in SAS. In vitro OMS in a general prediction equation of OMD did not display a significant forage-type effect on the residuals (observed - predicted OMD; P = 0.10). Predictions of OMD within forage types were consistent between iNDF and the 2-step in vitro method based on rumen fluid. Root mean square error of OMD was least (0.032) when the prediction was based on a general forage equation of OMS. However, regenerating a simple regression for iNDF by omitting alfalfa and wheat straw reduced the root mean square error of OMD to 0.025. Indigestible NDF in a general forage equation predicted OMD without any bias (P ≥ 0.16), and root mean square error of prediction was smallest among all methods when alfalfa and wheat straw samples were excluded. Our study suggests that compared with the in vitro laboratory methods, iNDF used in forage-specific equations will improve overall predictions of forage in vivo OMD. The in vitro and in situ methods performed equally well in calibrations of iNDF or OMD by near-infrared reflectance spectroscopy. 相似文献
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大庆市羊东毕吸虫病流行病学调查 总被引：1，自引：0，他引：1
对大庆市羊东毕吸虫病的流行病学进行了调查研究。结果表明，大庆有3种东毕吸虫，即程氏东毕吸虫（O.cheni)、土耳其斯坦东毕吸虫（O.turkestanica)和土耳斯坦东毕吸虫结节变种（O.turkestanican var.thuberculata)；中间宿主螺类有1种，即卵萝卜螺；东毕吸虫病在大庆分布很广，所调查的4区2县均有发生，羊东毕吸虫平均感染率分别为50．33％，平均死亡率为21．12％，大庆羊急性病例发病时间为8月上旬至10月下旬，慢性病例为11月上旬至翌年2月中旬。 相似文献
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中国圈养野生动物疫苗使用调查 总被引：1，自引：0，他引：1
2005年对中国动物园协会单位中的18家动物园饲养野生动物疫苗免疫情况进行调查。受调查动物园在野生动物疫苗使用和动物种类方面具有一定的代表性。调查结果显示动物园动物现共使用18类36种疫苗,预防31种疫病。其中哺乳动物使用14类24种疫苗,预防24种疫病;禽类使用4类12种疫苗,预防7种疫病。使用范围最广的有禽流感、犬瘟热疫苗等、新城疫疫苗、猫瘟热疫苗等。共有24目58科动物接种疫苗,其中食肉动物类1目8科,食草动物类3目9科,杂食动物类2目3科,禽类18目38科。研究结果提示应加强动物园之间疫病信息交流、防疫资源的利用、疫病监测和研究,加大对动物园动物疫病的研究投入,逐步建立动物园动物统一的防疫规程。 相似文献
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Information gathered from cases of fowl cholera (FC) in commercial turkey flocks through case records, flock records, and telephone and mail surveys was used to estimate disease costs. The cost to the Georgia commercial turkey industry in 1986 from preventive measures, treatment of outbreaks, and production losses from the disease was estimated at $634,545. The cost of FC per kg of live production was estimated to be $0.015. 相似文献
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猪伪狂犬病是由伪狂病病毒(Pseudorabies virus PRV)引起的急性传染病。其特征是成年猪常为隐性感染，可有流产、死胎、呼吸系统症状，新生仔猪除神经症状外还可侵害消化系统，并伴大批死亡。本病已经给全世界的养猪业造成严重的损失，我国许多地区已报道该病。为进一步探讨该病的控制、净化措施，我们对12个养猪场共856分血清采用美国嗍公司的ELISA试剂盒进行了抗体检测。 相似文献
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W A Vestre 《Modern veterinary practice》1984,65(2):93-97
In 5 cases of glaucoma (2 from trauma, 2 from narrowed drainage angles, 1 secondary to lens extraction), cyclocryotherapy was used to control intraocular pressure. In all cases the intraocular pressure decreased, with the usual result being a cosmetic and painless but blind eye. 相似文献
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Occurrence of MRSA in pigs and in humans involved in pig production--preliminary results of a study in the northwest of Germany 总被引：1，自引：0，他引：1
Meemken D Cuny C Witte W Eichler U Staudt R Blaha T 《DTW. Deutsche tier?rztliche Wochenschrift》2008,115(4):132-139
In 2007, 678 pigs of all age groups out of 347 different farms from Lower Saxony and Northrhine-Westphalia and 86 persons occupationally exposed to pigs were investigated for their nasal colonisation with methicillin-resistant Staphylococcus areus (MRSA) by the Field Station for Epidemiology of the University of Veterinary Medicine Hannover and the Robert Koch-Institute. At the individual animal level, a frequency of positive results of 13% (n = 85 positive animals) and at the herd level, a frequency of positive results of 18% (n = 62 positive herds) were found. All isolates were assigned to the Multilocus Sequence Typing Type ST398. Within MRSA-positive herds, there were more MRSA-negative than MRSA-positive animals. Among the occupationally exposed persons (veterinarians, laboratory personnel and meat inspection personnel), 20 persons (23%) showed a nasal colonisation with MRSA ST398. A quite strong association between the intensity of the contact to pigs with the frequency of nasal colonisation in the occupationally exposed persons was detected. None of the animals or the humans nasally colonised by MRSA ST398 showed any clinical symptoms of a staphylococcal infection. Conclusions are drawn on the herd and intra-herd prevalence of the nasal colonisation of pigs with MRSA ST398 in pigs, but especially on which questions need to be addressed by further research. 相似文献
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为了解西藏拉萨市家禽禽流感抗体水平,2017年8月随机选择免疫过H5禽流感疫苗的8个规模养殖场、2个散养户、3个活禽交易市场,共13个群体,采集1 041份家禽血清样品进行H5、H7、H9亚型禽流感HI抗体检测。结果显示：H5亚型禽流感免疫抗体合格率为45.73%,H7、H9亚型抗体阳性率分别为21.13%、52.64%;养殖场、散养户和活禽交易市场的不同亚型抗体水平存在较大差异,规模化养殖场的H7亚型抗体阳性率最高（29.92%）,活禽市场的H5、H9亚型阳性率最高（78.16%、79.31%）,散养户的所有亚型抗体阳性率均最低。结果表明,拉萨市H5亚型禽流感疫苗免疫效果较差,特别是散养户,疫病发生风险较高,H7、H9亚型疑似自然感染率较高,应进一步查明原因,及时采取相应的措施,防止疫情发生。 相似文献