共查询到20条相似文献，搜索用时 125 毫秒
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核心机房的动力与环境监控系统的规划与设计,概要总结动力与环境集中监控系统的详细实施细则,以数据采集、网络传输、系统组两、计算机软件/硬件设备和其它多种技术的综合应用等为说明,突出分析、介绍了动力与环境集中监控系统的系统架构和具体实现,并结合系统在实际应用过程中所解决的问题,探讨动力与环境集中监控系统在B接口、A接口、数据挖掘和科学规划方面的重要应用. 相似文献
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吴小刚 《四川畜牧兽医学院学报》2010,(3):23-24
高速交通环境绿化对改善高速交通环境生态环境,美化道路景观,保证行车安全有着重要的作用。高速交通环境的特殊性又影响了绿化苗木的成活、生长、成形。通过对高速交通环境绿化工程运用除草、修剪、浇水、施肥、病虫害防治、采伐更新、平茬更新等技术措施和环境绿化养护管理实践,提出一些针对高速交通环境绿化养护管理的方法和措施,对高速交通环境绿化与养护工作具有指导意义和应用价值。 相似文献
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基于AMMI模型的二化地区部分一化性柞蚕品种产茧量性状的稳定性分析 总被引：1，自引：0，他引：1
品种区域试验是柞蚕品种选育过程中评定参试品种和推广优良品种的一个重要环节,为探索二化地区一化性柞蚕品种的丰产和稳产性能,采用主效可加互作可乘模型(additive main effects and multiplicative interaction,AMMI)对辽四、辽8、四青等9个一化性柞蚕品种产茧量进行一点多年的比较试验.结果表明,基因型平方和占总平方和的55.85％,环境平方和占总平方和的4.34％,基因型与环境互作的平方和占总平方和的17.98％,上述一化性柞蚕品种在3个不同年份间的产茧量存在极显著的基因型、环境以及基因型与环境互作效应.其中稳产性最好的柞蚕品种为四青、883,丰产性最好的品种为辽四和辽8,稳产性和丰产性均较好的品种为辽8和松黄.883、鲁黄、四青、F-F、辽四与2014和2015年的环境有正的互作效应,而与2013年的环境有负的互作效应;932、吉黄、松黄、辽8与2013年的环境有正的互作效应,而与2014和2015年的环境有负的互作效应.分析表明,品种与环境之间存在较强的互作效应,辽8是丰产、稳产、适应性强的一化性柞蚕品种,辽四是丰产、适应性强的一化性柞蚕品种. 相似文献
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Infectious diseases remain one of the main causes of death and economic losses in animals despite the fact that prophylactic vaccination has been extremely successful in disease prevention. New effective viral, bacterial and parasitic vaccines are needed, but unfortunately production costs still remain prohibitive. In this respect plants can offer a valid alternative. Production of antigenic proteins in plants relies on a well developed and proven technology, several expression platforms are available and many different plant species can be utilized. Plant based veterinary vaccine studies have addressed protection issues in model animals and, more interestingly, some of them have examined the relevant challenge model in the specific species of interest. A general overview of the topic will be outlined together with a few selected promising examples. 相似文献
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L. Santi 《Veterinary research communications》2009,33(Z1):61-66
Infectious diseases remain one of the main causes of death and economic losses in animals despite the fact that prophylactic
vaccination has been extremely successful in disease prevention. New effective viral, bacterial and parasitic vaccines are
needed, but unfortunately production costs still remain prohibitive. In this respect plants can offer a valid alternative.
Production of antigenic proteins in plants relies on a well developed and proven technology, several expression platforms
are available and many different plant species can be utilized. Plant based veterinary vaccine studies have addressed protection
issues in model animals and, more interestingly, some of them have examined the relevant challenge model in the specific species
of interest. A general overview of the topic will be outlined together with a few selected promising examples. 相似文献
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不断发展的中国草原畜牧业 总被引：2，自引：0，他引：2
总结了新中国成立60年来我国草原畜牧业的发展情况,指出我国已经探索出一条适合中国特色的草原畜牧业发展道路。草原畜牧业生产水平在不断提高,如牧区每年向农区提供育肥用牛羊达到3 000多万头;草原畜牧业生产结构不断优化;经营模式不断转变,产、加、销一体化格局正在加快形成;草原畜牧业发展基础日益牢固,仅2000年以来,国家对草原保护建设的投入已超过200亿元;草原畜牧业对生态安全和经济发展发挥了重要作用,局部地区生态环境已得到明显改善。但是,受草原生态安全问题,生猪型畜牧业生产特点和草原地区自身发展能力等因素的制约,草原畜牧业发展还面临许多突出矛盾和艰巨挑战。因此,应该积极应对客观矛盾和问题,牢牢把握当前发展的有利机遇,进一步推进草原畜牧业发展。 相似文献
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Evolution of bovine viral diarrhea virus vaccines. 总被引：1，自引：0，他引：1
Clayton L Kelling 《Veterinary Clinics of North America: Food Animal Practice》2004,20(1):115-129
Control of bovine viral diarrhea virus (BVDV) infection is economically important to the cattle industry because the virus causes a variety of clinical diseases that adversely affect essentially all stages of the production cycle. Production losses primarily stem from reproductive failure and from immunosuppression during acute BVDV infection, which predisposes calves to respiratory or enteric diseases. Control is achieved by implementing herd health pro-grams focused on limiting exposure by avoiding persistently infected (PI) carrier cattle and by optimizing protective immunity through immunization. Vaccination cannot be relied upon solely to protect against fetal infection and losses due to BVD. This is because no single BVDV vaccine has been shown to give complete fetal protection. In addition to strategic use of vaccines, herd management practices should also be implemented to identify and eliminate PI carrier cattle and to avoid exposure to BVDV infection. 相似文献
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《羊生产学》课程教学改革与实践 《畜牧与饲料科学》2016,37(12):65-65
《羊生产学》是动物科学专业的主要课程,是一门理论与实践融会贯通的生产方向类课程。针对该课程教学过程中存在的教学内容涵盖面广、实践性强、学生学习兴趣不高及动手能力较差等问题,从教学内容、教学方法、考试制度等方面入手,对《羊生产学》课程进行了改革和探索。通过教学改革措施的实施,提高了《羊生产学》课程的教学效果和质量,为培育适应现代养羊生产的高素质专业技术人才打下了教学基础。 相似文献