维普中文期刊产品整合服务
150篇 您的检索式:作者名="FENG N B"
    题名 作者 年代 出处 被引量
1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
2Influence of Eutrophication on the Distribution of Total Mercury and Methylmercury in Hydroelectric Reservoirs显示文摘Meng Bo Feng X B Chen C X Qiu G L Sommar J Guo Y N Liang P Wan Q 2010EN2010,,5:2
3Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores显示文摘ZHAO D FENG J HUO Q MELOSH N FREDRICKSON G H CHMELKA B F STUCKY G D 1998Science1998,279,5350:1
4Quantification of syste- mic and local immune responses to individual rotavirus proteins during rotavirus infection in mice 显示文摘ISHIDA S FENG N TANG B et ol 1996J Clin Microbiol1996,34,7:1
5Thermodynamic and kinetic investigations on the reaction of O(3P) with HNO显示文摘Du B N Zhang W C Feng C J 2004Journal of Molecular Structure (Theochem)2004,712,:1
6Fabrication of low resistivity tin-doped indium oxide films with high electron carrier densities by a plasma sputtering method 显示文摘Kono A Feng Z B Nouchi N 2008Vacuum2008,39,4:1
7The influence of CD4^+ CD25^+ Foxp3^+ regulatory T cells on the immune response to rotavirus infection显示文摘Kim B Feng N Narvdez CF 2008Vaccine2008,26,44:1
8Preparation and characterization of self-emulsified waterbome nitrocellulose 显示文摘MA S D SONG G L FENG N B 2012Carbohydrate Polymers2012,89,1:1
9Preparation and characterization of self-emulsified waterborne nitrocellulose 显示文摘MA S D SONG G L FENG N B 2012Carbohydrate Polymers2012,89,1:1
10Distribution and wet deposition fluxes of total and methyl mercury in Wujiang River Basin,Guizhou,China显示文摘Guo Y N Feng X B Li Z G 2008Atmospheric Environment2008,42,1:1
11The draft genome of the fast-growing non-timber forest species moso bamboo (PhyUostachys heterocycla) 显示文摘Peng Z H Lu Y Li L Zhao Q Feng Q Gao Z M Lu H Y Hu T YAO N Liu K Y LiY FanDL GuoYL LiW J LuY Q Weng Q J Zhou C C Zhang L Huang T Zhu C R Liu X G Yang X W Wang T Miao K Zhuang C Y Cao X L Tang W L Liu G S Liu Y L Chen J Liu Z J Yuan L C Liu Z H Huang X H LuT T Fei B H Ning Z M Han B Jiang Z H 2013Nature Genetics2013,45,4:1
12Simultaneous determination ofβ-lactam antibiotics andβ-lactamase inhibitors in bovine milk by ultra performance liquid chromatographytandem mass spectrometry显示文摘LI N FENG F YANG B 2014J Chromatogr B Analyt Technol Biomed Life Sci2014,,:1
13Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores显示文摘ZHAO D Y FENG J L HUO Q S MELOSH N FREDRICKSON G H CHMELKA B F STUCKY G D 1998Science1998,279,5350:1
14The impact of eutrophication on the biogeochemical cycling of mercury species in a reservoir: A case study from Hongfeng Reservoir, Guizhou, China 显示文摘He T R Feng X B Guo Y N 2008Environmental Pollution2008,154,1:1
15A genome-widc RNAi screen reveals determinants of human embryonic stem cell identity显示文摘Chia N Y Chan Y S Feng B 2010Nature2010,468,7321:1
16Residual stress field and thermal relaxation behavior of shot-peened TC4-DT titanium alloy显示文摘FENG B X MAO X N YANG G J 2009Materials Science and Engineering A2009,512,12:1
17Residual stress field and thermal relaxation behavior of shot-peened TC4-DT titanium alloy显示文摘FENG B X MAO X N YANG G J YU L L WU X D 0,,:1
18A new optimization method for dynamic design of planar linkage with clearances at joints-optimizing the mass distribution of links to reduce the change of joint forces显示文摘FENG B MORITA N TORII T 2002Journal of Mechanical Design Transactions of the ASME2002,124,1:1
19Human infection with a novel avian-origin influenza A(H7N9)virus显示文摘Gao R Cao B Hu Y Feng Z Wang D Chen J Jie Z Qiu H Xu K Xu X Lu H Zhu W Gao Z Xiang N Shen Y He Z Gu Y Zhang Z Yang Y Zhao X Zhou L Li X Zou S Zhang Y Li X Yang L Guo J Dong J Li Q Dong L Zhu Y Bai T Wang S Hao P Yang W Zhang Y Han J Yu H Li D Gao GF Wu G Wang Y Yuan Z Shu Y 2013N Engl J Med2013,368,:1
20Joint network-centric and user-centric radio resource management in a multicell system显示文摘Feng N Mau S C Mandayam N B 2005IEEE Transactions on Communications2005,53,7:1
返回顶部 每页显示:
共8页 首页 上一页 第1页 下一页 末页 /8 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费