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58篇 您的检索式:作者名="Combes R 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
2USPHS 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
3The 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
4Unfolding the Lange Coupler (Short Papers)显示文摘 La Combe D 1972IEEE Microwave Theroy and Techniques1972,11,:1
5A 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
6Effects of inert rumen bulk on dry matter intake in early and midlactation cows fed diets differing in forage content 显示文摘T R Johnson D K Combs 1992Journal of Dairy Science1992,75,2:1
7Beta-Amyloid fibrils activate parallel mitogen-activated protein kinase pathways in microglia and THP1 monocytes显示文摘McDonald D R Bamberger M E Combs C K 1998J Neurosci1998,18,12:1
8Subtypes of social perception deficits in schizophrenia 显示文摘Nelson A L Combs D R Penn D L 2007Schizophr Res2007,94,1:1
9Recurrent low-grade gliomas: the role of fractionated stereotactic re-irradiation 显示文摘Combs SE Ahmadi R Schulz-Ermer D 2005J Neurooncol2005,71,3:1
10AABB technical manual16thed显示文摘Roback J D Combs M R Grossman B J 2008Betheda: AABB press2008,36,27:1
11The welfare problems associated with using transgenic mice to bioassay for bovin spongiform encephalopathy 显示文摘Jenkin E S Combes R D 1999Anim Welf1999,8,4:1
12Effects of corn particle size and source on performance of Lactating cows fed direct-Cut grass-legume forage显示文摘Reis R B San Emeterio F Combs K D 2001Dairy Sci2001,84,:1
13Coverage of immature cotton neps in dyed fabrics using chitosan aftertreatment 显示文摘Mehta R D Combs R 1997American Dyestuff Reporter1997,,7:1
14Early microdose drug studies in human volunteers can minimise animal testing: Proceedings of a workshop organised by Volunteers in Research and Testing显示文摘Combes R D Berridge T Connelly J 2003European journal of pharmaceutical sciences2003,19,1:1
15Endocrine disruptors: A critical review of in vitro and in vivo testing strategies for assessing their toxic haz-ard to humans显示文摘Combes R D 2000HERO2000,28,1:1
16Effects of additional feed during late gestation on reproductive performance of sows:A Cooperative Study显示文摘Cromwell G L Hall D D Clawson A J Combe G E Knabe D A Maxwell C V Noland P R Orr D E J Prince T J 1989J Anim Sci1989,67,:1
17The Value of Human Resource Management for Organizational Performance显示文摘Liu Y Combs b JG Ketchen.Jr.D J Ireland R D 0,,:1
18Single-column purification of free recombinant proteins using a self-cleavableaffinity tag derived from a protein splicing element 显示文摘Chong S R Mersha F B Comb D G 1997Gene1997,192,2:1
19Effects of Corn Particle Size and Source on Performance of Lactating Cows Fed Direct-Cut Grass-Legume Forage显示文摘Reis R B San Emeterio F Combs D K 2001Dairy Sci2001,84,:1
20Chenical modification of metal oxide surfaces in supercritical CO2显示文摘Combes J R White L D Tripp C P 1999Langmuir1999,15,:1
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