电子商务对会计的影响

本文探讨了电子商务对会计理论和会计结算的影响,其中包括电子商务对会计主体假设的影响,对货币计量假设的影响,对持续经营假设的影响,对会计分期假设的影响等。本文也阐述了电子商务对会计要素和会计原则的影响和对内部控制的影响。以及讨论了电子商务对会计报告的影响。本文也对电子商务对会计的挑战进行了分析。     

人-猪链球菌感染及其检测技术

本文首先对猪链球菌感染状况进行了详细的分析和论述，对目前的几种猪链球菌检测的技术进行了论述和比较，对检测技术的发展前景进行了描述，为如何探索有效的检测技术提供了参考和思路。     

犬情感行为取向之心理探析

 对犬的情感行为和心理取向的研究,有助于人们对犬、对生命、对大自然甚至对社会伦理的更加深入地思考和认识。论文对犬服从行为、友善行为、勇敢忠诚行为、依恋行为和冷淡行为等情感行为进行了描述以及对犬相关行为心理特征进行了分析,探讨了犬各种情感行为取向和心理选择形成的原因、机制和影响因素,阐述了犬与人类共同生活的环境、犬与人类的情感和社会行为之间的相互关系。     

国内外肉羊业发展概述

对国内外肉羊业发展的历史和现状进行了比较,对其研究方向和生产趋势进行了分析,并对国内外肉羊育种新技术的应用,以及我国肉羊业的优势和不足进行了相应的阐述。     

2010年国内外蜂王浆研宄概况

对2010年国内外蜂王浆的研究和专利公开情况进行了汇总,从地域和研究领域方面进行了统计和比较,就蜂王浆的质量评估、分子生物学研究、生理药理功能和产业发展等方面的研究成果进行了归类,对2010年专利公开的情况进行了介绍,并对蜂王浆研究开发的趋势和方向进行了总结。     

显微注射法制备转基因鼠和转基因猪的技术特点此较

本文采用显微注射技术制作转基因鼠和转基因猪并对共进行比较,阐明了用显微注射方法制作两种转基因动物的技术原理和实验方法.对两者相似点进行了归纳和总结,同时也对两种转基因动物制作过程中的不同之处进行了比较和分析.根据两种不同的实验动物,描述了它们各自不同的实验特点,技术方法和实验要求.本文同时也在理论上和实践中对转基因动物的制作进行了探索.     

维生素E对水貂的应用研究进展

文中概述了维生素E对水貂应用的一些特殊的生物学作用和对水貂繁殖、生长发育和健康等影响以及不同时期水貂对维生素E的营养需要,提出了水貂对维生素E营养需要的管理措施和建议,以期对我国水貂养殖和科研提供有益信息。     

蜜蜂的矿物质营养

本文阐述了矿物质对蜜蜂营养生理和生长发育的作用,对蜜蜂矿物质需求量进行了归纳,并对花粉和蜂蜜中矿物质种类与含量进行了介绍。     

论科技文与文学作品的翻译风格

本文主要对科技文和文学作品的翻译风格进行了比较讨论。首先介绍了科技文和文学作品的特点和内容,然后主要从言语风格、文体风格和作品风格三个方面对科技翻译和文学翻译的风格进行了讨论,最后,对翻译风格的分析进行了总结。以上翻译风格的分析和讨论对更加准确的进行科技文和文学作品的翻译具有重要意义。     

高职饲料原料学教学改革初探

辽宁医学院畜牧兽医学院饲料原料学课程组对高职饲料专业饲料原料学课程的教学内容和教学模式进行了改革,摒弃了以学科体系为框架的传统教学内容和模式,对重新构建的教学内容和教学模式进行了探索,对创新型技能人才的培养起到了促进作用。     

Comparison of in vitro and in situ methods in evaluation of forage digestibility in ruminants

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.     

大庆市羊东毕吸虫病流行病学调查

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。     

ELISA试验在防制猪伪狂犬病中的应用

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。     

中国圈养野生动物疫苗使用调查

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。     

Estimate of economic impact of fowl cholera in turkeys in Georgia in 1986

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.     

Use of cyclocryotherapy in management of glaucoma in dogs

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.     

Occurrence of MRSA in pigs and in humans involved in pig production--preliminary results of a study in the northwest of Germany

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.     

2017年西藏拉萨市家禽禽流感抗体水平检测

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。