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《养殖与饲料．饲料世界》2021,(10)
为了解云南省武定县乡镇羊的消化道寄生虫感染情况,从武定县的插甸镇某大耳黄羊羊场和猫街镇、狮山镇和田心乡的散养户中采集新鲜羊粪样共222份,采用饱和盐水漂浮法检测寄生虫。结果显示:样品线虫卵和球虫卵囊的总检出率为93.69%,其中线虫卵阳性率为81.98%、球虫卵囊阳性率为33.78%、线虫和球虫的混合感染率为22.07%;从不同采样点来看,插甸镇某大耳黄羊场的线虫卵和球虫卵囊检出率为91.30%,猫街镇的线虫卵和球虫卵囊检出率为93.15%,狮山镇的线虫卵和球虫卵囊检出率为100%,田心乡的线虫卵和球虫卵囊检出率为93.15%。从不同养殖方式来看,规模化养殖场的线虫卵和球虫卵囊检出率为91.30%、散养户的线虫卵和球虫卵囊检出率为94.32%。不同乡镇以及不同养殖方式的羊肠道寄生虫感染差异均不显著。结果表明:云南武定县部分乡镇羊肠道寄生虫感染普遍,且有混合感染。建议进行定期驱虫,加强饲养环境监控,提高科学饲养水平。 相似文献
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为评估碧江区羊肠道寄生虫感染情况，于2022年从碧江区部分乡(镇)羊场采集新鲜羊粪276份，采用饱和盐水漂浮法、水洗沉淀法、卢戈氏碘液法检测粪便样品中寄生虫阳性率。结果发现，共225份样品中检测出寄生虫虫卵或卵囊，检出率为81.52%;共检测到8种寄生虫，包括球虫、隐孢子虫、阿米巴原虫、圆线虫、细颈线虫、羊口线虫、鞭虫和莫尼茨绦虫，检出率分别为40.2%、19.2%、3.26%、67.8%、1.81%、2.54%、2.17%和5.80%。散养户来源样品寄生虫感染种类复杂，感染情况严重；不同发育阶段羊群感染寄生虫种类和感染率存在差异，其中羔羊感染原虫类肠道寄生虫较严重，需要引起养殖场(户)重视。 相似文献
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为了解长顺县散养绿壳蛋鸡肠道寄生虫的感染情况,本文采用蠕虫学解剖法,对长顺县7个乡镇办事处共11个散养户的65羽鸡进行了剖检,并对肠道各段的寄生虫进行收集。初步得出:散养绿壳蛋鸡寄生虫感染有鸡异刺线虫、鸡蛔虫、鸡棘口吸虫、赖利属绦虫四类,其感染率分别为75%、42%、42%、50%。调查表明,长顺县散养绿壳蛋鸡寄生虫感染较为普遍,其中鸡异刺线虫感染率最高。该调查为制定长顺县散养绿壳蛋鸡寄生虫的防治措施提供了一定的依据。 相似文献
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麋鹿肠道寄生虫感染流行病学调查 总被引：1，自引：0，他引：1
《畜牧与兽医》2016,(2):112-115
为了解保护区内麋鹿各种肠道寄生虫流行现状,在2011—2015年连续5年采集麋鹿粪便,采用沉淀集卵法、尼龙筛集卵法、饱和食盐水浮集法和饱和蔗糖溶液离心法等对保护区内145份麋鹿粪便进行了肠道寄生虫卵的检测。结果显示:寄生虫卵的总体检出率以吸虫卵比率最高,达67.58%;线虫卵、绦虫卵和球虫卵相对较少,分别为17.24%、15.86%及13.80%。寄生虫种类为前后盘吸虫卵的检出率最高,达53.10%,其次为带绦虫卵、蛔虫卵、艾美尔球虫卵,分别为15.86%、13.10%和8.28%。而从年度来看,寄生虫总体感染率呈现明显上升趋势,吸虫感染增加最明显,绦虫、线虫等的感染也呈现上升趋势。从季节来看,吸虫和绦虫粪便阳性率和虫卵数量有明显季节相关,夏季、秋季明显高于其他季节,但线虫受季节影响不明显。 相似文献
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《中国家禽》2019,(11)
为了解无量山乌骨鸡寄生虫病的感染情况,采集了无量山地区规模养鸡场128份和10家散养户共162份新鲜鸡粪样,采用漂浮法和显微镜检共检测出118份存在寄生虫感染,平均感染率为40.69%,检出了球虫卵囊、蛔虫卵和毛细线虫卵,其感染率分别为20.70%、23.79%、6.21%,其中球虫和蛔虫为该地区的优势虫种。规模场感染率为24.22%,主要感染球虫和蛔虫,阳性率均为12.50%,其中有一份样品是混合感染;散养户感染率为53.70%,主要感染球虫、蛔虫和毛细线虫,阳性率分别为27.16%、32.72%、11.11%;其中有26份样品存在两种及以上混合感染现象,混合感染检出率为16.05%。不同养殖方式、性别、年龄的乌骨鸡之间寄生虫感染存在显著性差异(P0.05),表明无量山乌骨鸡感染寄生虫较为突出,需要加强综合防控。 相似文献
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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