加强林业基层推广工作存在的瓶颈与对策

通过对林业基层推广工作的分析,探讨林业基层推广工作存在的包括推广方式、劳动力、经费等方面存在的瓶颈,并针对存在的问题提出解决策略。     

新疆天然草地生态保护与利用及牧民定居示范工程信息平台的建设

阐述了"新疆天然草地生态保护与利用及牧民定居示范工程"项目信息平台系统的设计、特点及信息采集与维护等情况,通过该平台的建设,使中日双方项目组对项目的进展有了直接的了解,同时为项目的顺利实施奠定了基础,也为项目的进一步推广起到了示范作用。     

分布式人才管理决策支持系统的设计与实现

根据当前人才工程与现代科学人事制度需要，提出建立分布式多层人才管理决策支持系统作为管理科学化，民主化的有利保证，该系统综合利用ＷＷＷ技术、ＣＯＲＢＡ技术及ＯＬＥ／ＣＯＭ技术为广大分布用户提供分布决策支持；同时，为决策系统提供了集成一些新技术的有利手段；并且决策中定性推量和定量推理能够相辅相成协同完成多级决策技术。     

In vitro blastogenic responses of peripheral lymphocytes from marmosets to phytohemagglutinin and to autologous lymphocytes transformed by Epstein-Barr virus

White-lipped marmosets were evaluated for their cell mediated immune (CMI) response to EBV to determine the feasibility of CMI studies in marmoset models for EBV oncogenesis. The mitogen, cell concentrations, the length of incubation period and serum requirements were defined for in vitro lymphocyte stimulation tests. The level of response of each animal was dependent on the concentration of phytohemagglutinin-P (PHA-P) and was independent of cell densities employed. The rate of tritiated-thymidine incorporation by mononuclear cells due to PHA-P increased exponentially between 2–4 days. This test was reproducible for a given batch of PHA-P when the cells were cultured in the presence of 10% heat inactivated fetal bovine serum. The five white-lipped marmosets were seronegative for EBV antigens and did not show lymphocyte stimulation with EBV particles and EBV soluble antigen, but two of these animals exhibited significant stimulation with autologous lymphocytes transformed in vitro by B95-8 virus. Despite the limited amount of blood (3–4 ml) that could be obtained from each animal in a single bleeding, it was possible to perform multiple lymphocyte stimulation assays with the protocol used.     

Competence of Aedes albopictus and Culex quinquefasciatus as vector of Dirofilaria immitis after blood meal with different microfilarial density

Aedes albopictus and Culex quinquefasciatus were fed canine blood with different microfilarial density of Dirofilaria immitis ranging from 2500 to 25,000 mff/ml. Larval development in these two mosquito species did not differ significantly. Although C. quinquefasciatus ingested more microfilariae, the number of larvae which developed in A. albopictus was invariably greater than in C. quinquefasciatus. Mortality of the engorged A. albopictus was significantly greater than that of C. quinquefasciatus, and higher microfilarial density raised the mortality in both species. The vector efficiency index of A. albopictus was greater than C. quinquefasciatus at all microfilarial densities, but its survival time was much reduced. Thus, dogs with low microfilarial density are implicated as the main source for the transmission of D. immitis from dogs to mosquitoes.     

东莞市动物防疫检疫信息化管理的探讨

跨入21世纪,人类已进入信息化时代。在动物防疫检疫工作中,引用信息化管理,是新形势下动物防疫管理工作的必然要求,对提高动物防疫管理水平,确保动物防疫各项措施落实,实时掌握动物防疫工作动态,保障监督工作到位,提高管理绩效,推动动物防疫管理工作规范化、程序化、制度化起到重要作用。鉴于目前动物防疫管理工作中引用信息化程度不高,尚处于起步探索阶段,因此,东莞市兽医防疫检疫站从2004年起,对在动物防疫管理工作中引入信息化管理进行专题研究,研究开发了“动物防疫检疫管理系统”,成功应用于我市动物防疫管理工作中并发挥了重要作用。…     

危难时刻,训练爱犬救你

犬是最忠于人类的动物。在带犬执行任务中，犬主人经常面临突遭袭击或袭击后的危险，针对这一问题，要培养犬良好的应变能力，培养其在突发事件中护主救人的能力，综合发挥犬的特殊作用。     

转rolA、B、C基因枳橙快繁技术

通过对转rol基因枳橙B、D、E系及对照的高接植株春梢茎段进行萌芽诱导、增殖及试管苗生根成苗的试验,摸索出适宜枳橙快繁各种培养基配方及培养条件。结果表明,以MS+6-BA1mg/L的培养基适合于芽萌发,以MS+6-BA0.5mg/L+NAA0.05mg/L的培养基适合于芽增殖,生根则以1/2MS+NAA0.5mg/L+0.2%活性炭的组合最佳,转基因各系生根率均在93.3%以上,显著高于对照生根率(66.7%)。快繁苗移栽成活率可达90%,目前生长良好。     

热带亚热带优质高产牧草矮象草的试验研究

10年的系统研究结果表明,矮象草具有适应性与抗逆性强、产量较高质量好、粗蛋白质含量与消化率高、叶量大利用率高、动物利用增产效果显著的特点,是适于热带亚热带地区种植的优良牧草品种.     

对拖拉机变型产品技术条件的探讨

运输型或多功能拖拉机产品从 90年代中期以来进入了一个快速发展的时期。介绍了拖拉机变型产品的发展过程和作用 ,叙述了目前该产品的技术条件、行业标准的形成过程、作用和意义 ,分析了该类产品现有行业标准存在的问题 ,并提出了拖拉机变型产品技术条件行业标准的修订建议 ,重点探讨了四轮拖拉机变型产品技术条件中的一些关键技术指标