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| 1 | Variations in Wool Growth with Nutrient Supply in Northern China显示文摘Field studies on essessment of nutritional status of the grazing sheep were carried out in each of the three major grassland regions, the eastern Inner Mongolia and beyond grassland, the Inner Mongolia - Ningxia - Gansu grassland and the Xinjiang grassland, in northern China. The results obtained showed that the wool production of fine wool sheep in these regions varied between regions and seasons, with similar seasonal patterns in all regions and that reducing the seasonal variations in nutrient supply would enhance wool production substantially. Nutritional limitations to wool growth of the grazing sheep in these regions were suggested, those were: the shortage of protein supply in winter and early spring; the poor quality of much of the pasture and the hay used as supplements, the low energy intake during winter which probably necessitated the use of body stores to maintain body temperature. | D X Lu,Iner(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)Z C Feng,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)H R Wang,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)R Z Yang,(Xinjiang Institute of Animal Science.Xinjiang Academy of Animal Science.Yiu Hou Road.Urumqi.Xinjiang Uygur Autonomous Region PRC)C T Ma,(Chinese Academy of Agricultural Sciences.Lanzhou.Gansu.PRC)D B Purser,(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)J R Lindsay(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)D W Peter(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014) | 1997 | 畜牧与饲料科学1997，22，S1： | 3 |
| 2 | 全颗粒饲料对奶牛生产性能的影响显示文摘饲料中的中性洗涤纤维(NDF)含量和饲料颗粒直径是影响瘤胃功能的重要因素。试验评估了以颗粒饲料为主的奶牛瘤胃健康情况、NDF消化率和生产性能。选取8头荷斯坦母牛(336±30 d,体重346±35 kg),随机分配到交叉重复试验组中,奶牛安置于牛栏,自由采食。试验期为3周,前两周是适应期,最后一周为数据收集期。各组饲粮原料相同,但物理形式不同,分为全混合日粮(TMR)和颗粒料(直径=8 mm)。两组间物理有效NDF(pe NDF)不同,TMR组为39.8%,颗粒料组为11.8%。在试验过程中,干物质采食量(DMI)、饮水量、瘤胃反刍时间、瘤胃温度和pH情况均记录。3周后收集粪样,确定潜在的可消化NDF总消化率(pdNDF)。每阶段结束后计算平均日增重和饲料转化率。颗粒料组的DMI、DMI/体重和饮水量更高。而两组间平均日增重和饲料转化率无显著差异。颗粒料组的瘤胃反刍时间为241 min·d-1低于TMR组的507 min·d-1。饲料的不同物理外形对瘤胃温度、瘤胃pH无显著影响。TMR组的pdNDF总消化率为90.25%高于颗粒料组的86.82%。试验结果表明,动物易接受完整的颗粒饲料,DMI较高,且反刍时间减少,但瘤胃pH无显著变化。TMR组的pdNDF消化率显著增加。尽管两组奶牛在DMI和纤维消化方面表现不同,但总体表现相似,两组饲料的保存时间与其物理形式有关。在短期内,提供能满足NDF需求的完全颗粒饲料可改善瘤胃健康状况和动物生产性能,而较长时间的数据则需要进一步试验。 | Wang J Yang M Cao M Lin Y Che L Q Duraipandiyan V Al-Dhabi N A Fang Z F Xu S Y Feng B Liu G Wu D Bonfante E Palmonari A Mammi L Canestrari G Fustini M Formigoni A | 2016 | 饲料博览2016，0，12： | 2 |
| 3 | Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2. | Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q | 2006 | Journal of Semiconductors2006，27，4： | 2 |
| 4 | Seasonal variation of solvent extractable organic compounds in the aerosols in Qingdao, China显示文摘 | Guo Z G Sheng L F Feng J L | 2003 | Atmospheric Environment2003，37，13： | 1 |
| 5 | Cloning and optimization of a nitrilase for the synthesis of (3S)-3-cyano-5-methyl hexanoic acid显示文摘 | Feng J Garcia E | 2006 | J Mol Catal B:Enzymatic2006，41，34： | 1 |
| 6 | Simple scheme for generating an n-qubit W state in cavityQED显示文摘 | Feng M Gao K L | 2006 | Phys Rev A2006，73，01： | 1 |
| 7 | Global entropy solutions to the relativistic Euler equations for a class of large initial data显示文摘 | LI Y C FENG D M WANG Z J | 2005 | Zeitschrift für angewandte Mathematik und Physik2005，56，2： | 1 |
| 8 | Study of carrier localization in InGaN/GaN quantum well blue-light-emitting diode struc- tures 显示文摘 | Chen J H Feng Z C | 2006 | J Cryst Growth2006，287，2： | 1 |
| 9 | A study of drilling uni-directionalcarbon/epoxy composites显示文摘 | Gao H Bao Y J Feng Z M | 2011 | International Journal of AbrasiveTechnology2011，4，1： | 1 |
| 10 | DNA damage induces p53-dependent BRCA1 nuclear export 显示文摘 | FENG Z KACHNIC L ZHANG J | 2004 | J Biol Chem2004，279，28： | 1 |
| 11 | Mechanistic studies of electrodeposition for bioceramic coatings of calcium phosphates by an in situ pH-microsensor technique显示文摘 | Zhang J M Lin C J Feng Z D | 1998 | Journal of Electroanalytical Chemistry1998，452，2： | 1 |
| 12 | Potential molecular basis of different physiological properties of the transient outward K current in rabbit and human atrial myocytes 显示文摘 | Wang Z Feng J Shi H | 1999 | Circ Res1999，84，： | 1 |
| 13 | Effects of mineral additives on the β-crystalline form of isotactic polypropylene显示文摘 | Feng J C Chen M C Huang Z T | 2002 | J Appl Polym Sci2002，85，： | 1 |
| 14 | A Locally Adaptive Filter of Interferometric Phase Images显示文摘 | Wu N Feng D Z Li J | 2006 | Geoscience and Remote Sensing Letters IEEE2006，3，： | 1 |
| 15 | Kinetically restraining aggrega- tion of ZnS nanocrystals and the effect on photocatalysis 显示文摘 | Feng S A Zhao J H Zhu Z P | 2008 | Materi- als Science and Engineering: B Solid-State Materials for Ad- vanced Technology2008，150，2： | 1 |
| 16 | Extraordinary transmission in planar waveguide loaded with anisotrop- ic metamaterials 显示文摘 | Feng Y J Teng X H Wang Z B | 2009 | J Appl Phys2009，105，03： | 1 |
| 17 | Seasonal variation of solvent extractable organic compounds in the aerosols in Qingdao, China显示文摘 | Guo Z G Sheng L F Feng J L | 2003 | Atmospheric Environment2003，37，13： | 1 |
| 18 | Graphene oxide sheets covalently functionalized with block copolymers via click chemistry as reinforcing fillers 显示文摘 | Cao Y Lai Z Feng J | 2011 | J Mater Chem2011，21，25： | 1 |
| 19 | Thermomechanical properties of brazed wire-woven bulk Kagome cellular metals for multifunctional applications显示文摘 | FENG S S LI M Z JOO J H | 2012 | Journal of Thermophysics and Heat Transfer2012，26，1： | 1 |
| 20 | IrrE, a global regulator of extreme radiation resistance inDeinococcus radiodurans, enhances salt tolerance in Escherichia coli and Brassica napus显示文摘 | Pan J Wang J Zhou Z Yan Y Zhang W Lu W Ping S Dai Q Yuan M Feng B Hou X Zhang Y Ma R Liu T Feng L Wang L Chen M Lin M | 2009 | PloS One2009，4，2： | 1 |
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