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931篇 您的检索式:作者名="Cook F"
    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
2Interactive High-Dimensional Data Visualization 显示文摘Buja A Cook D Swayne D F 1996Journal of Computational and Graphical Statistics1996,5,1:2
3Impact of pancreatic leaks on survival following pancreaticoduodenectomy 显示文摘Ausania F Cook N Jamieson N 2010JOP2010,11,3:1
4Test of the RCS method for preserving low-frequency variability in long tree-ring chronologies显示文摘Esper J Cook E D Schweingruber F H 2003Tree-Ring Research2003,59,2:1
5Sex pheromone and visual trap interactions in mate location strategies and aggregation by host-alternating aphids in the field显示文摘Hardie J Storer J R Cook F J 1996Physiological Entomology1996,21,2:1
6Cyber bullying behaviors a-mong middle and high school students显示文摘MISHNA F COOK C GADALLA T 2010Am J Orthopsychiatry2010,80,3:1
7Shock Tube Studies of Methane and Ethane Oxidation 显示文摘Cooke D F Williams A 1975Combustion and Flame1975,24,:1
8C shaped canal configurations in mandibular molar显示文摘Cook H G 3rd Cox F L 1979J Am Dent Assoc1979,99,5:1
9Drought reconstruction for North Central China from tree rings= The value of the Palmer drought severity index显示文摘Li J B Chen F H Cook E R 2007Int J Clim2007,27,7:1
10Childhood size is more strongly related than size at birth to glucose and insulin levels in 10-11-year-old children显示文摘Whincup PH Cook DG Adshead F 1997Diabetologia1997,40,3:1
11^99mTc-HL91 to identify tumor hypoxia:Correlation with 18F-FDG显示文摘Cook G J Houston S Barrington S F 1998J Nucl Med1998,39,1:1
12Nutrition and the immune response of domestic fowl显示文摘Cook M F 1991Crit Rev Poult Biol1991,,3:1
13From Raw Materials to Cus- tomers: Supply Chain Management in the Service Industry 显示文摘JACK S COOK KATHY D AMIE F 2001SAM Advanced Management Journal2001,66,4:1
14Laparoscopic paravaginal repair of anterior compartment prolapse 显示文摘Behnia-Willison F Seman EI Cook JR 2007J Minim Invasive Gynecol2007,14,:1
15Relationship between soil respiration and soil moisture显示文摘Orchard V A Cook F J 1983Soil Biology and Biochemistry1983,15,:1
16Characteristics and genesis of epithermal gold deposits 显示文摘Cooke D R Simmons S F 2000Reviews in Economic Geology2000,13,2:1
17New aspects in the stabilization of acrylic fibers for carbon fibers 显示文摘Bhat G S Cook F L Abhiraman A S 1990Carbon1990,28,23:1
18LX-17 comer turning显示文摘Souers P C Andreski H G Cook C FⅢ Garza R Pastrone R Phillips D Roeske F Vitello P Molitoris J D 2004Propellants Explosives and Pyrotechnics2004,29,1:1
19Impact of pancreatic leaks on survival following pancreaticoduodenectomy显示文摘Ausania F Cook N Jamieson N 2010JOP2010,11,3:1
20Users' perceptions of library service quality: a LibQUAL + qualitative study显示文摘Cook C Heath F M 2001Library Trends2001,49,4:1
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