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260篇 您的检索式:作者名="Combs R"
    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
2Differential effects of High dietary levels of vitamin A on the vitamin E-selenium nutrition of young and adult chickens显示文摘Combs J R G F 1976Journal of Nutrition1976,106,:1
3Homogeneous free radical polymerizations in supercritical carbon dioxide 2:thermal decomposition of 2,2′-azobis(isobutyronitrile)显示文摘Guan Zhibin Combes J R Menceloglu Y Z 1993Macromolecules1993,26,11:1
4An integrated decision-tree testing strategy for eye irritation with respect to the requirements ofthe EU REACH legislation显示文摘Grindon C Combes R Cronin MT 2008Altern Lab Anim2008,,:1
5USPHS 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
6The 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
7The pleiotropic effect of TRAIL on tumor-like synovial fibroblasts from rheumatoid arthritis patients is mediated by caspases显示文摘AUDO R COMBE B COULET B 2009Cell Death Differ2009,16,9:1
8Unfolding the Lange Coupler (Short Papers)显示文摘 La Combe D 1972IEEE Microwave Theroy and Techniques1972,11,:1
9Toward a 'Greener' revolution 显示文摘WELCH R M COMBS Jr G F DUXBURY J M 1997Issues in Science and Technology1997,14,:1
10A 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
11Risk factors for venous thromboembolism in hospitalized patients with acute medical ill- ness:analysis of the MEDENOX study显示文摘Alikhan R Cohen AT Combe S 2004Arch Intern Meal2004,164,9:1
12Buyer power and supplier incentives显示文摘Crook T R Combs J G 2005Europe- an Economic Review2005,51,3:1
13Formation of poly submicron fibers and particles from supercritical carbon dioxide solutions 显示文摘Mawson S Johnston K P Combes J R 1995Macromolecules1995,28,9:1
14Relationship between plasma ghucose, brain actate and intracell Ular PH daring cerebralis chemiain gerbils显示文摘Combs DJ Deinpsey R Maley M 1990Strock1990,21,5:1
15Effects of ascorbic acid on proliferation of and collagen synthesis in relation to the donor age of human topical fibroblasts显示文摘Philips C L Combs S B Pinnel S R 1994Journal of Investigative Dermatology1994,103,:1
16A methodology to Estimate Impacts of Domestic Policies on Deforestation : Compensated Successful Efforts for 'Avoided Deforestation' (REDD) 显示文摘Motel P C Pirard R Combes J L 2009Ecological Economics2009,68,3:1
17An overall strategy for the testing of chemicals for human hazard and risk assessment under the EU REACH system显示文摘Combes R Barratt M Balls M 2003ATLA - Alternatives to Laboratory Animals2003,31,1:1
18An overall strategy for the testing of chemicals for human hazard and risk assessment under the EU REACH system 显示文摘COMBES R BARRATr M BALLM S 2003Altern Lab Anim2003,31,1:1
19Sonographic estimation of fetal weight based on a model of fetal volume 显示文摘COMBS C A JAEKLE R K ROSENN B 1993Obstet Gynecol1993,,82:1
20Risk factors for venous thromboembolism in hospitalized patients with acute medical illness:analysis of the MEDENOX Study显示文摘Alikhan R Cohen AT Combe S 2004Arch Intern Med2004,164,:1
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