猪、牛巴氏杆菌菌种常温下在羊鲜血琼脂斜面上的保存期试验

攻毒用猪、牛巴氏杆菌菌种开种后,经选种接种羊鲜血琼脂斜面,对在常温下避光保存2年以上的细菌,按菌种的标准进行各项特性鉴定,结果细菌的各项特性均符合《中华人民共和国兽用生物制品规程》的规定.     

中华人民共和国国家标准乳与乳制品卫生标准的分析方法(连载二)

第四篇全脂牛乳粉 本篇适用于全脂牛乳粉各项卫生指标的测定. 9感官检查 淡黄色,粉状,颗粒均匀一致,无结块,无异味.详细按GB 5410中1.4条要求进行检查.     

水泥物理力学性能比对试验分析及注意事项分析

在当前现有的各类工程项目中,水泥材料仍然构成了不可或缺的建材类型。然而实质上,水泥原材本身体现为复杂特性,而与之有关的物理力学性能也体现为较多层次。通过开展比对试验,针对水泥现有的各项物理力学特性都能予以全方位的检测,确保其符合当前现有的水泥性能指标。因此可以得知,比对试验应当能够适用于测查水泥的各项关键性能,因地制宜选择与项目建设相适应的水泥建材规格。针对上述试验应当予以全方位的详细解析,探求其中涉及的注意事项。     

犬胃复安中毒病例

一西施犬,雄性,年龄14个月龄,体重4.5kg,已按免疫程序使用英特威六联苗免疫过.该犬因精神沉郁,呕吐,全天呕吐7次左右,不吃不喝,并且全身发抖,于当天下午4时去某动物医院进行治疗,检查血常规各项指标基本正常.     

日本鹿儿岛巴克夏猪的肉质测定

日本引进巴克夏猪长年于鹿儿岛饲养,形成其新的特点而称鹿儿岛巴克夏猪,其肉质测定于下: 1.肉的理化特性肌肉的物理特性,表现为硬度、凝集性、粘着性和附着性,其测定方法是将肌肉放在70℃水中煮后,用图象扫描摄影,观察其硬度,凝集性、粘着性和附着性。取腰椎部分的眼肌和股二头肌中心部分的肌肉进行测定。硬度:测定的结果是眼肌部分依次按硬软排列     

紫阳出台扶贫攻坚目标考核办法

紫阳出台扶贫攻坚目标考核办法陕西石新科陕西省紫阳县委、县政府为确保２０００年基本解决全县贫困人口温饱问题，于近日制定出台了扶贫攻坚目标考核办法。办法规定各乡镇共设２２个考核项目，以百分制进行考评记分，各项指标全部完成的计满分，超额或没完成的按比例增减...     

东北梅花鹿与山羊血清蛋白各项指标的比较研究

梅花鹿和山羊同属反刍类动物。梅花鹿近年来经驯化选育已较适应人工饲养。遗传性能也趋于稳定,并且保留了抗病力强、耐粗饲的生活特性。山羊是经过长期培育,适应于高原及丘陵地区的动物,与梅花鹿相比有很多相似之处。因此以动物有机体某些生化指标来探讨不同品种之间的差别及动物与大自然之间的相互关系是当前研究的内容。现将东北梅花鹿血清蛋白各项指标与山羊血清蛋白各项生化指标作一比较,以说明两者之间的异同。     

一日二回育不同饲育密度的成绩比较

用现行蚕箔按每箔200头、250头、300头、350头、400头密度饲育五龄蚕，调查各项成绩进行比较。结果随着饲育密度的增大，成绩下降。最适宜于二回育的五龄蚕饲育密度为每箔200－300头，超过300头密度饲育成绩差。     

近交系出路的探索(摘要)

新疆白猪“21型”是在苏联大白猪、长白猪为主导的复杂杂交群体基础上开始育种工作的,于1982年通过自治区级鉴定,正式确定为新疆白猪的一个优秀类群。当新品种培育进入横交固定阶段,根据猪群外形鉴定和各项生产性能的测定(包括个体测定和后裔测定),于1977年确定以两种不同的建系方法(即系祖建系法和群体建系法),按其生产性能分别开始为建     

家蚕原种质量调查及国家标准的实施与评价

2004-2010年连续7年对全国13个蚕茧主产省(市、区)的家蚕原种质量进行监督检验,结果显示家蚕原种质量总体良好:全部抽检的176个批次家蚕原种中,有166个批次合格,平均抽检合格率94.3%,年度抽检合格率由2004年的84.2%上升至2010年的96.6%,上升了12.4个百分点。纵观连续7年对家蚕原种质量检测的各项指标数据认为,GB 19179—2003《桑蚕原种》国家质量标准中的指标设置科学合理。基于促进生产企业抓好蚕种质量管理的目的,对进一步完善《桑蚕原种》国家质量标准提出以下建议:将外观包装指标中的标签、合格证单独列出;将单蛾最少良卵数、折净率归类在标准的"附录A(规范性附录)生产过程预控要求"中,并将折净率提高5个百分点(即折净率≥55%),每张良卵数按品种类别与生产季节进行分类;将纯度归类在质量指标的备检项目中;在卵质指标合格的前提下,再按合格原种的品种特性与各项质量指标在家蚕原种质量评价体系中的权重综合评定进行科学合理的分级,以便家蚕原种销售按等级实施"优质优价"。     

The influence of the width of the saddle tree on the forces and the pressure distribution under the saddle

As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks.     

Monitoring of the mare during the perinatal period at the clinic and in the stable

Complications in late gestation are challenging problems for the equine clinician and are causes of considerable distress to owners. Health problems in a pregnant mare in each stage of gestation can adversely affect the pregnancy. It is important to obtain a thorough history and perform a detailed and systematic examination of the pregnant mare so that the mare may be classified as normal or high-risk. However, even after a thorough examination, practitioners may face problems with the interpretation and assessment of risk. Normal mares should foal in the stable or pasture. Mares classified as having a high-risk pregnancy need to be monitored precisely for signs of oncoming foaling with attendance of trained personnel when labour begins. A valuable method for monitoring of the high-risk mare is assessing fetoplacental well-being. Fetoplacental well-being is most accurately assessed with ultrasonography as well as several available hormone profiles. We are proposing our scoring system of the mare's health, which may be useful in the assessment of risk during pregnancy and help clinicians to decide whether sending the mare to the clinic is reasonable or unnecessary.     

中国饲料工业协会第五届理事会顾问、会长、常务副会长、副会长、秘书长、副秘书长、常务理事、理事名单

顾问刘中一张德邻宋瑞祥聂振邦张子仪戎易王维四会长白美清国务院原副秘书长、第四届理事会会长常务副会长(8人,以姓氏笔划为序)刘永好新希望集团董事长、第四届理事会副会长刘汉元通威股份有限公司董事长、第四届理事会副会长陈丹广东恒兴集团股份有限公司董事长、第四届理事会副会长张延喜农业部原副部长、第四届理事会副会长吴明夏湖南正虹科技发展股份有限公司董事长、第四届理事会副会长陶一山唐人神集团股份有限公司董事长、第四届理事会副会长温鹏程广东温氏食品集团有限公司董事长、第四届理事会副会长谭竹洲原化学工业部副部长、第…     

Harnessing the genetic toolbox for the benefit of the racing Thoroughbred

The understanding and application of genetics have grown extremely quickly since it has become possible to sequence the whole genome of an organism. The human genome sequence was completed in 2001 and that of the horse in 2007. The significance of this is that it makes it more feasible to explain how both genetically simple and complex traits are transmitted from one generation to the next and, therefore, to make informed breeding decisions, modify how horses are managed and trained to minimise the risk of disease and injury, and improve methods of prevention, diagnosis and treatment of many conditions. The science of genetics/genomics will continue to grow internationally, limited only by the funds available. The application of the science to man, horses and other species raises very complex moral and commercial issues. Thoroughbred breeders are perceived by some as resistant to change, but their apparent intransigence is often based on a genuine concern for the integrity of the breed. By taking control of the application of the advances in genetics, the Thoroughbred industry potentially has the opportunity to improve both the health and performance of Thoroughbreds. If, however, the science is applied in an uncoordinated manner, driven by commercial interests with no underlying concern for the horses themselves, there is a very real risk that breeders, the Thoroughbred breed and individual horses will all suffer as a consequence.     

商品猪胴体性能对分割销售后效益的影响

试验以深圳某集团销售外三元商品猪为研究对象,分析了商品猪不同胴体性能对分割销售效益的影响.结果表明,销售完成率与胴体背膘厚呈正相关,不同背膘厚的销售完成率差异极显著(P<0.01);销售完成率与胴体重呈正相关,不同胴体重的销售完成率差异显著(P<0.05);销售毛利率与胴体背膘厚呈正相关,不同背膘厚的销售毛利率差异极显...     

鸡胆囊交感节后神经元的定位研究

为了找出支配鸡胆囊交感节后神经元的分布规律,选用体重1.5 kg～2.5 kg的成年母鸡6只,将CT-HRP溶液注入胆囊壁,动物存活3 d～4 d后,经左心室灌流固定,取内脏神经节、肾上腺神经节以及双侧胸、腰和荐段交感干神经节,制成50 μm的连续冰冻切片,TMB法呈色反应,置明视野显微镜下观片统计.结果发现,支配鸡胆囊的交感传出神经元胞体位于内脏神经节(占41.1%)、肾上腺神经节(占40.5%)和T2～T7交感干神经节(占18.4%),在交感干神经节中标记细胞的峰值位于T5、T6交感干神经节.所有的标记细胞以位于右侧的占优势.     

犊牛腹泻与肠道菌群的变化

本文检测腹泻犊牛的直肠内8种主要正常菌群的变化,并与健康犊牛进行对比。结果发现,犊牛腹泻时,大肠杆菌、双岐杆菌和乳杆菌变化较大,而其它菌群变化较小。腹泻或将腹泻时,大肠杆菌数增加,双岐杆菌和乳杆菌数下降。腹泻康复或即将康复时,大肠杆菌减少,双岐杆菌、乳杆菌数增加。     

陕北白绒山羊繁育中心羊场绒山羊日粮的评价

试验选择陕北白绒山羊繁育中心羊场的成年健康母羊（怀孕前期）16只,育成母羊13只,育成公羊13只,空腹称重。测定每只羊1d的采食量,计算其摄入的营养成分含量,并与原苏联绒用山羊饲养标准比较,进行饲养水平评价。结果显示,与饲养标准比较,陕北白绒山羊繁育中心羊场的育成母羊代谢能高2．68MJ,粗蛋白低59．29g,钙低3．00g,磷低1．52g;育成公羊代谢能高3．47MJ,粗蛋白低81．92g,钙低4．42g,磷低2．62g;成年母羊代谢能高2．51MJ,粗蛋白低91．33g,钙低3．09g,磷低1．93g。结合羊的体况综合评价饲养水平基本合理,但尚需要按饲养标准增加粗蛋白、钙、磷等营养物质的供给量。     

猪獾全身骨骼的观测

对致死后的野生雄性猪獾作全身骨骼系统观察测定，共拍摄照片6幅，查明猪獾全身共有252共骨头，另有4块喉软骨，长约4．3cm，略弯圆柱状阴茎骨，16对肋软骨，上下各1对犬齿，较发达，分别长1．4cm,1.3cm，发现猪獾善于穴居或栖居，行动迟缓的骨骼特征：（1）胸椎发达，颈椎，腰椎较发达；（2）胸骨的前端愈合完全，后端膨大突出：（3）前肢短，有29．5cm，后肢长，有33．4cm，均有强大锐利的脚爪；（4）尾椎较长，全长16．9cm。