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388篇 您的检索式:作者名="COMBS D"
    题名 作者 年代 出处 被引量
1高羊茅干草部分替代玉米和紫花苜蓿青贮饲料对奶牛消化、泌乳性能的影响显示文摘试验旨在研究高羊茅干草替代玉米或紫花苜蓿青贮对奶牛中性洗涤纤维(NDF)消化率、泌乳性能的影响。选取初产哺乳荷斯坦奶牛(产奶75±35 d)24头,经产荷斯坦奶牛(产奶68±19 d)40头,随机分成4组,共设置32个进料闸门,记录采食量。每组8个进料阀门,以1头牛为1个试验单位,每头牛试验过程中可接触8个进料闸门。试验用高羊茅干草(TF)取代玉米青贮饲料(CS)或紫花苜蓿青贮饲料(AS),试验设计为:33%AS和67%CS(空白组)、60%TF和40%AS(试验1组)、60%TF和40%CS(试验2组)、33%TF和67%CS(试验3组)。试验进行7周,前2周进行预饲。试验结果表明,各组间牛奶产量无显著差异,平均值为40.4 kg·d^(-1)。各组间牛奶中脂肪含量和浓度、蛋白质含量和浓度均无显著差异,平均值为1.58 kg·d^(-1)和3.94%、1.28 kg·d^(-1)和3.15%。与试验1组(22.1 kg·d^(-1))、试验3组(22.7 kg·d^(-1))相比,空白组的干物质摄入量最高,为24.5kg·d^(-1)。各组间总的干物质消化率无显著差异,平均值为66.2%。与试验2组(44.4%)、试验3组(45.3%)相比,空白组的NDF消化率较低,为37.8%,与试验1组(42.4%)相近。各组间奶牛体内NDF消化率(42.3%)与预估的NDF消化率(42.6%)相近。试验结果表明,饲喂高羊茅干草可提高饲料中NDF消化率,部分替代玉米和紫花苜蓿时对产奶量无显著影响,在市场价格较低时,可作为经济实用的奶牛饲料。Bender R W Lopes F Cook D E Combs D K 2016饲料博览2016,0,8:2
2Four genes encode acetylcholinesterases in the nematodes Caenorhabditis elegans and Caenorhabditis briggsae cDNA sequences,genomic structures,mutations and in vivo expression显示文摘Combes D Fedon Y Grauso M 2000J Mol Biol2000,300,:1
3Isolation of a Type 2 Metallothionein-Like Gene Preferentially Expressed in the Tapetum in Zea Mays显示文摘Charbonnel Campaa L Larga B Combes D 2000Gene2000,254,:1
4USPHS tuberculosis short-course chemotherapy trial 21:effectiveness,toxicity and acceptability:report of the final results显示文摘Combs D L O'Brien R J Geiter L J 1990Ann Intern Med1990,112,:1
5The role of resource flexibility in leveraging strategic resources显示文摘Combs J G Ketchen D J Ireland R D 2011Journal of Management Studies2011,48,5:1
6Single-column purification of free recombinant proteins using a self-cleavable affinity tag derived from a protein splicing element显示文摘Chong S Mersha F B Comb D G 1997Gene1997,192,2:1
7Positron emission tomography scanning in the evaluation of hepatocellular carcinoma显示文摘Khan MA Combs CS Brunt EM et d 2000J Hepatol2000,32,5:1
8Unfolding the Lange Coupler (Short Papers)显示文摘 La Combe D 1972IEEE Microwave Theroy and Techniques1972,11,:1
9A review of the genoto-xicity of food, drug and cosmetic colours and other azo, triphenylmethane and xanthene dyes 显示文摘Combes R D Haveland-Smith R B 1982Mutation Research/Reviews in Genetic Toxicology1982,98,2:1
10Identifi-cation of microglial signal transduction pathways me-diating a neurotoxic response to amyloidogenic frag-ments of beta-amyloid and prion proteins显示文摘Combs C K Johnson D E?Cannady S B 1999J Neu-rosci1999,19,:1
11The moderating effect of CEO power on the board composition -firm perfor-mance relationship 显示文摘Combs J G Ketchen D J Perryman A A 2007Journal of Management Studies2007,44,8:1
12Esterification by immobilized lipase in solvent-free media:Kinetic and thermodynamic arguments显示文摘 Combes D Condoret J S 2002Biotech Bioeng2002,78,3:1
13Effects of polyols on a-ehymotrypsin thermostability a mechanistic analysis of the enzyme stabilization显示文摘Lozano P Combes D Iborra J L 1994Journal of bioteehnology1994,35,:1
14How much do high-performance work practices matter? A metaanaylsis of their effects on organizational performance显示文摘Combs J Liu Y.M Hall A Ketchen D 0,,03:1
15The role of tumor necrosis factor in the pathophysiology of heart failure显示文摘Feldman AM Combed A Wagnet D et al 2000J Am coil cardiol2000,35,:1
16Continuous enzymatic transesterification of high oleic sunflower oil in a packed bed reactor: influence of the glycerol production显示文摘Dossat V Combes D Marry A 1999Eazyme Microbial Technology1999,25,:1
17Polyhydric alcohol protective effect on Rhizomucor miehei lipase deactivation enhanced by pressure and temperature treatment 显示文摘Noel M Lozano P Combes D 2005Bioprocess and Biosystems Engineering 20052005,,:1
18Cloning and gene defects in microsomal triglyceride transfer protein associated with abetalipoproteinaemia显示文摘Sharp D Blinderman L Combs K A 1993Nature1993,365,:1
19Effect of Lactobacillus inoculants and forage dry matter on the fermentation and aerobic stability of ensiled mixed- crop tall fescue and meadow fescue 显示文摘Guo X S Undersander D J Combs D K 2013Journal of Dairy Science2013,,96:1
20Isolation and polymorphism in mitochondrial DNA from Schistosoma mansoni显示文摘DESPRES L IMBERT-ESTABLET D COMBES C 1991Mol Biochem Parasitol1991,47,1:1
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