ESTABLISHMENT OF TAI PIN DI COMPREHENSIVE PROTECTING FOREST SYSTEM

<正> A multi-function protecting forest system was planed and arranged elaborately for im-provement of the local ecological conditions and high economical benefit. The system in-cludes level farmland shelter belt network, hillside farmland shelter belt network, stereoscop-ic sparse-wood pasture, erosion control fuel forest, fast growing commercial forest, eco-nomical forest, salt-soda controlling project and salt-soda protecting forest on salt-sodaland, ect..     

猪鸡联养研究

研究表明笼养肉鸡的鸡粪中粗蛋白含量比平面养的高１６．４７个百分点，而粗纤维低９．１２个百分点。用鸡粪喂猪，其饲料报酬同加入鸡粪的比例呈正相关，如日粮中添加３０－６０％鸡粪，其饲料报酬提高１５．３２－５５．３２％；同样加入４０％鸡粪喂猪，鸡粪经发酵的饲料报酬又比不发酵的高９．６２％。为使育肥猪得到较好的增重，还应将日粮的营养水平调整到接近饲养标准，猪鸡联养规模，一个专业户一次批量以肉鸡１０００－１５００羽，联养生猪１０－２０头为宜。     

The pathogenesis of experimental Haemonchus longistipes infection in camels

The pathogenesis and clinical signs of Haemonchus longistipes infection were studied in four experimentally infected camels two of which were adults and the other two were young. In the former animals, an acute infection developed, characterized by mucoid diarrhoea, anorexia, anaemia, loss of body weight, oedema of the lower parts of the limbs, general malaise and death at 8-10 weeks post-infection. In the two younger camels, a less dramatic disease was encountered with less severe symptoms and no oedema, but also terminating fatally at 19-20 weeks post-infection. Parasitological, haematological and biochemical parameters were determined during the course of the infection and were mostly comparable with those usually encountered in haemonchosis of other animals.     

Electrophoretic comparison of the genomes of North American bluetongue viruses, one Australian bluetongue virus, and three other related orbiviruses

The genomes of U.S. bluetongue viruses, an Australian bluetongue virus, and three other related orbiviruses were analyzed by polyacrylamide gel electrophoresis. The genomes were comprised of ten segments of double-stranded (ds) RNA. Estimates of the molecular weights of the dsRNA segments revealed that the U.S. bluetongue serotypes were remarkably similar. Although the dsRNA profiles of the viruses exhibited common segments, each virus had a distinct dsRNA profile. The usefulness of the genome analysis as a diagnostic tool for identification and for epidemiologic studies is discussed.     

Physical habitat utilization of fish in a Sonoran Desert stream, Arizona, southwestern United States

Abstract– The physical habitat utilization of 7 species of native fishes in a Sonoran Desert stream, Aravaipa Creek, Arizona is described. The species occupied significantly different depths and velocities of water. Longfin dace ( Agosia chrysogaster ), speckled dace ( Rhinichthys osculus ) and loach minnow ( Tiaroga cobitis ) used similar depths and velocities. Two of the three larger species (Sonora sucker [ Catostomus insignis ] and roundtail chub [ Gila robusta ]) used areas of greater depth and reduced velocity. Desert sucker ( Catostomus clarki ) grouped with loach minnow and speckled dace in the velocity of water occupied, but utilized deeper waters. The spikedace ( Meda fulgida ) aligned very closely with desert sucker in use of all 3 physical habitat variables.     

大学城景观环境设计的生态对策--以广州大学城为例

在对我国大学城建设中面临的景观环境问题进行分析的基础上,提出了大学城景观环境设计的生态对策,并对广州大学城景观环境设计与建设的生态对策进行了探讨。     

小额信贷政策支持大学生“村官”成功创业的研究

介绍了大学生"村官"成功创业对国家、农民、个人具有的政治、社会、个人意义,以及各地小额信贷政策支持大学生"村官"成功创业的模式和成功经验,最后提出深化小额信贷政策对大学生"村官"成功创业的助推效应:金融机构还须从创新融资对接方式、推动金融产品创新等几个方面加强政策力度,创新具体做法。     

省级农科院与高校联合培养研究生的模式初探——以浙江省农业科学院与高校联合培养为例

随着研究生招生规模的逐年扩大,省级农科院与高校联合培养研究生已成为一种全新的研究生培养模式。文章阐述了浙江省农业科学院与高校联合培养研究生的概况及培养模式,分析了省级农科院与高校联合培养研究生的优势,剖析了联合培养研究生过程中存在的问题,并提出了相应对策,以期更加有效地利用合作培养单位双方的最有利资源,使培养的研究生能够更加紧密地理论联系实际生产,培养其更强的实践能力和创新能力。     

广东高职院校图书馆书目信息服务探讨

首先简述书目及书目信息服务,分析广东省76所高职高专院校图书馆书目信息服务的现状,最后提出加强高职院校图书馆书目信息服务的对策。     

体验经济下高校图书馆数字资源推介的新探索

数字资源的有效推介,一直困扰着很多高校图书馆,新的体验经济为这一难题开拓了以"参与、互动"为主要方向的探索发展空间。通过具体分析数字资源推介过程中读者参与性、互动性较差的影响因素,并在体验经济环境下探索新的解决途径和模式,提出通过设定主题、设定舞台、制造情景,让读者真正的参与认识、检索、利用、推介,从而进一步达到互动的效果。