意大利发明智能减速带 汽车通过即可产生电能

<正>公路上,每天都有不计其数的车辆川流而过,不过,您是否曾想过,这些车流除了带来噪音和尾气之外,也可以带来洁净的能源。意大利米兰的一家科技公司三年前便诞生了这个想法,他们研制的智能减速带除了有辅助车辆减速的功能外,还可以将车辆在减速过程中损失的动能转化成电能。如果将这种减速带铺设在车流密集的路段,它就可以变成源源不断的电力来源,让汽车这个环境污染的罪魁祸首反过来造福于城市。该科技公司的首席执行官安德烈亚·皮里西表示,减速带其实就是一个能量转换器:"我们设计的(减速     

育种咨询系统中的水稻杂交后代性状预测

杂交育种是一个很复杂的组合过程。由于指导育种的遗传学原理还远不够完善,因此,在实践中更多的是依赖育种家的经验和技巧,从而造成了育种工作中一定程度上的盲目性。为了提高育种效率,有必要发展一套为育种工作服务的咨询系统。利用它协助育种家收集数据、分析育种过程。本文重点阐述水稻杂交咨询系统研制中的杂交后代性状预测方法及原理。     

Blood Typing of Asiatic Black Bear (Ursusthibetanus)

In this study,we aimed to determine whether bear had different blood group systems.Whole blood samples were collected from 40 Asiatic Black bears in Fujian province,China.Tube method was used to detect antibodies in plasma,and antibody isotype was determined with 2-mercaptoethanol.Plasma was further analyzed by mass spectrometry.The plasma from four bears had antibodies,possibly IgM isoform,which could agglutinate RBCs from 30 bears.Blood samples from 10 bears were tested by human blood typing reagents.The results showed that 4 bears had blood type like human type O,while 6 bears had like human type B.Plasma protein had extensive homology to serum albumin-like isoform 1 found in giant panda (Ailuropodamelanoleuca).We suggested that Asiatic Black bear might have at least one blood group system with two blood types.If the sick bear needs blood transfusion,a cross-matching test was necessary.Moreover,giant panda might receive blood from Asiatic Black bear in case of emergency.     

Isolation and Identification of Cellulase-producing Bacillus in Yak Rumen

To investigate the species of cellulase-producing Bacillus in yak rumen,10 samples of rumen content were aseptically collected from 10 adult Maiwa yaks to isolate the heat-resistant Bacillus by water bath at 80 ℃ for 20 min.The cellulase-producing strains were screened using the CMC-Na medium and Congo red staining.The 16S rRNA gene sequence of those cellulose-producing strains were amplified and sequenced.The results showed that 64 strains were isolated from the 10 samples.Total 23 strains were identified as cellulase-producing bacillus,including 16 strains of Bacillus cereus,7 strains of Bacillus thuringiensis.Furthermore,phylogenetic analysis showed that the 16 Bacillus cereus strains were clustered into two branches:One isolate was clustered into a branch alone,the other 15 isolates were clustered into a branch which clustered into 5 small branches,showing that there was certain genetic diversity in the isolates of Bacillus cereus.And all 7 Bacillus thuringiensis strains were clustered into a branch.Hence,the results layed the foundation of investigating the species of cellulase-producing Bacillus in yak rumen and developing probiotics special for yak.     

国内规模猪场猪舍降温系统的应用现状

猪舍通风降温是夏季高温季节猪场管理的重要环节,文内就现阶段我国猪舍使用的不同降温方式加以总结,并对不同降温方法应用现状及存在的问题进行分析,以期为新猪场建设选择适宜的降温方式提供理论指导。     

“最美兽医人”张建民:忠诚坚守 数十载风雨兼程创佳绩 继往开来 展未来踌躇满志谱新章

正张建民,毕业于西北农业大学兽医系兽医专业,高级兽医师,现任蒲城县畜牧站副站长,渭南市动物疫情分析与风险评估专家组专家,县管拔尖人才,蒲城县"十佳科技专家"蒲城县专家委员会成员。在平凡的工作岗位上默默地奉献着,他以自己的实际行动,展现了一名兽医工作者的精神风采,受到了干部职工的一致好评,先后多次被省、市、县评为畜牧系统先进工作者和优秀党员。"我是一名兽医我不奢望天下无敌,我也不愿争名夺利,我     

破解兽药监管难题的“二维码”追溯管理制度——农业部兽医局相关负责人答记者问

正为进一步强化兽药质量安全监管,2015年1月21日农业部发布农业部第2210号公告,决定全面实施以兽药"二维码"标识为核心的兽药追溯监管工作。目前此项工作进展情况如何?在实施过程中存在哪些问题?下一步需要加强和完善的工作还有哪些?带着这些问题,本刊记者近日采访了农业部兽医局相关负责人。《兽医导刊》:为什么要实施兽药"二维码"追溯管理制度?答:有效解决动物源性食品安全的重点和难点在于     

畜产品安全监管体系的构建

通过分析当今畜产品质量安全监管中存在的问题,为了进一步加强动物产品质量安全体系减少,有效地推动和探索建设我国动物卫生监督工作的监督体系的进一步完善,提出相关的建议与措施。     

仔猪多系统衰竭综合征的诊断和防治

仔猪多系统衰竭综合征是由致病性猪圆环病毒Ⅱ型感染断奶仔猪后引起的疾病。本文从仔猪多系统衰竭综合征的临床症状、流行病学特征、病理变化对疾病进行了初步诊断,同时对本病的防治措施进行系统研究。     

动物诊疗机构人用药品使用现象分析及建议

随着社会经济水平日益提升,越来越多的人饲养宠物作为伴侣,与此同时宠物诊疗机构如春笋般蓬勃发展。然而其在发展中存在诸多问题,尤以使用人用药品问题最为突出。论文从药品使用现状、原因、管理等方面,对动物诊疗机构人用药品使用现象进行分析并提出一些建议,旨在进一步规范动物诊疗机构临床用药,使其良性发展。