维普中文期刊产品整合服务
457篇 您的检索式:作者名="FENG N S"
    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
2Analysis and design for a class of complex control systems, Part Ⅱ: fuzzy controller design显示文摘CAO S G REES N W FENG G 1997Automatica1997,33,:1
3Endogenous hydrogen sulfide contributes to the cardioprotection by metabolic inhibition preconditioning in the rat ventricular myocytes显示文摘Pan T T Feng Z N Lee S W 2006J Mol Cell Cardiol2006,40,1:1
4Adsorption study of copper(Ⅱ) by chemically modified orange peel显示文摘FENG N GUO X LIANG S 2009J Hazard Mater2009,164,:1
5Further results about quadratic stability of continuous-time fuzzy control systems显示文摘Cao S G Rees N W Feng G 1997System Science1997,28,4:1
6Kinetic and thermodynamic studies on biosorption of Cu (II) by chemically modified orange peel 显示文摘Liang S Guo X Y Feng N C 2009Trans Nonferrous Met Soc China2009,19,:1
7Endogenous hydrogen sulfide contributes to the cardioprotection by metabolic inhibition preconditioning in the rat ventricular myocytes 显示文摘Pan T T Feng Z N Lee S W 2006J Mol Cell Cardiol2006,40,1:1
8Effect of Bi203 on physical, optical and structural properties of boron silicon bismuthate glasses 显示文摘GAO G HU L L FAN H Y WANG G N LI K F FENG S Y FAN S J CHEN H Y 2009Optical Materials2009,32,:1
9Effective removal of heavy metals from aqueous solutions by orange peel xanthenes 显示文摘Liang S Guo X Y Feng N C 2010Trans Nonferrous Met Soc China2010,20,:1
10Experimental study and evaluation of latent heat storage in phase change materials wallboards 显示文摘Lv S L Feng G H Zhu N 2007Energy and Buildings2007,39,10:1
11Automatic validation of phosphopeptide identifications by the MS2/MS3 target-decoy search strategy 显示文摘Jiang X N Han G H Feng S 2008J Proteome Res2008,,7:1
12Stress- strain model for concrete confined by FRP composites 显示文摘Youssef M N Feng M Q Mosallam A S 2007Composites: Part B2007,38,56:1
13Quantification 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
14Endogenous hydrogen sulfide contributes to the eardioproteetion by metabolie inhibition preconditioning in the rat ventrieular myocytes 显示文摘Pan T T Feng Z N Lee S W 2006J Mol Cell Cardiol2006,40,1:1
15Light and electron microscopy of the leucocytes of Crassostrea virginica( Mollusca: Pelecypoda) 显示文摘FENG S Y FENG J S BURKE C N 1971Zeitschrift For Zellforschung und Mikroskopische Anatomie1971,120,2:1
16Analysis and design for a complex control system, part I: fuzzy modeling and identification显示文摘Cao S G Rees N W Feng G 1997Automatica1997,6,:1
17Design of Fuzzy Control Systems with Guaranteed Stability 显示文摘Feng G Cao S G Ress N W 1997Fuzzy Sets and Systems1997,85,1:1
18Effects of elevated CO2 levels on root morphological traits and Cd uptakes of two Lolium species under Cd stress显示文摘Jia Y Tang S R Ju X H Shu L N Tu S X Feng R W Giusti L 2011Journal of Zhejiang University of Science2011,12,4:1
19Preparation 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
20Analysis and design for a class of complex control systems显示文摘CAO G S REES N W FENG G 1997Automatica1997,33,6:1
返回顶部 每页显示:
共23页 首页 上一页 第1页 下一页 末页 /23 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