|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 过瘤胃蛋氨酸、赖氨酸和组氨酸对泌乳奶牛生产性能的影响显示文摘试验旨在研究饲料中单独添加或综合添加过瘤胃(RP)蛋氨酸、赖氨酸和组氨酸及可代谢蛋白(MP)对泌乳后期奶牛生产性能的影响。试验选取72头荷斯坦奶牛,随机分为6组,试验期9周。奶牛随机分配到6个试验组中,2周作为1个变量周期:MPA组,根据美国国家科学研究委员会(2001)标准,在饲料中添加调节MP到243 g·d-1;MPD组,不添加MP,MP含量低于标准量54 g·d-1;MPDM组,在MPD组的基础上加入RP蛋氨酸;MPDL组,在MPD组的基础上加入RP赖氨酸;MPDH组,在MPD组的基础上加入组氨酸;MPDMLH组,在MPD组的基础上加入RP蛋氨酸、RP赖氨酸和RP组氨酸。试验结果表明,与MPA组对比,MPD组的干物质采食量(DMI)、产奶量、乳成分(乳脂肪、乳蛋白和乳糖)及能量校正的牛乳(ECM)、ECM饲料利用效率、牛奶和血浆中的N均降低。在MPD基础上补充RP赖氨酸可使乳蛋白率、血浆中葡萄糖浓度增加,且牛奶中N元素含量有增加的趋势;补充RP组氨酸可使DMI、牛奶浓缩蛋白增加,且乳脂肪、乳蛋白和ECM显著增加;补充3种RP氨基酸时,增加了乳蛋白率,使DMI和乳脂率有增加趋势,也提高了乳脂肪、乳蛋白含量和ECM及ECM饲料利用效率。与MPA相比,MPD组牛奶中N的含量有降低趋势,且血浆中必需氨基酸(除赖氨酸和蛋氨酸)浓度均降低。补充RP赖氨酸、RP蛋氨酸和RP组氨酸提高了血浆中蛋氨酸(除MPDM组)、赖氨酸和组氨酸浓度。饲喂MPD的奶牛血红蛋白浓度降低,血浆生长素含量高于MPA组。MPD组牛奶中总饱和脂肪酸浓度有高于MPA和MPDMLH组的趋势。MPD组的多元不饱和脂肪、牛奶中奇链与支链脂肪酸含量与MPA组相比,有降低趋势。试验结果表明,对于饲料中缺乏MP的奶牛,在饲料中添加组氨酸和添加3种RP氨基酸(赖氨酸、蛋氨酸和组氨酸)均有提高牛奶产量和牛奶组分含量的可能性。 | Giallongo F Harper M T Oh J Lopes J C Lapierre H Patton R A Parys C Shinzato I Hristov A N | 2016 | 饲料博览2016,0,7: | 4 |
| 2 | 基于多目标权重分析的草地适宜放牧率探讨显示文摘依据生态系统服务的理念,首次发展了生态系统服务指数(ESI),试图通过对生态系统服务功能的综合考虑,提出科学的适宜放牧率的评价方法。本研究利用美国北达科他州立大学中部草原研究站17年长期放牧试验数据,选取植物多样性Shannon-Wiener指数、地上净初级生产力、土壤表层含水量和单位面积家畜增重4个指标,通过对不同指标分别赋予不同的权重,计算不同管理目标下ESI及其稳定性,并对单目标管理与多目标管理进行了比较研究。结果表明,对于北美混合普列里(Prairie)草地,围封不利用或建立自然保护区,虽然生态系统比较稳定,但既不能有效的提高植物多样性、初级生产力和土壤水分含量等生态功能,又没有畜产品产出;而在重牧或极重牧处理下虽然获得了较大的畜产品生产,但导致了草地生态系统的退化和较大的系统不稳定性。因此,这2种管理方式在实践中都是不可取的。应用生态系统服务指数综合考虑,认为应该权衡各项生态功能和生产功能,此时轻牧或中牧是最适宜的。因此,ESI的建立避免了单项指标的评价偏差,使得适宜放牧率的确定更加合理。 | 潘绪斌 汪金晖 汪诗平 Nyren P E Patton B D 董学军 Nyren A | 2008 | 草业学报2008,17,4: | 3 |
| 3 | Mentalhealth, depression, and anxiety in patients on maintaindialysis显示文摘 | Feroze U Martin D Reina - Patton A | 2010 | IranJ Kidney Dis2010,4,3: | 1 |
| 4 | Ability of commercially available dairy ration programs to predict duodenal flows of protein and essential amino acids in dairy cows显示文摘 | PACHECO D PATTON R A PARYS C | 2012 | Journal of Dairy Science2012,95,2: | 1 |
| 5 | Technical considerations for the use of surface coils in MRI显示文摘 | Kulkarni M V Patton J A Price R R | 1986 | A JR Am J Roentgenol1986,147,2: | 1 |
| 6 | Multivariate GARCH modeling of exchange rate volatility transmission in the Euro- pean monetary system 显示文摘 | Kearney C Patton A J | 2000 | Financial Review2000,35,1: | 1 |
| 7 | Silicoaluminophosphate molecular sieves: another new class of microporous crystalline inorganic solids 显示文摘 | Lok B M Messina C A Patton R L | 1984 | J Am Chem Soc1984,106,20: | 1 |
| 8 | Protection system reliability modeling: unreadiness probability and mean duration of undetected fault显示文摘 | SINGH C PATTON A D | 1980 | IEEE Trans on Reliability1980,29,4: | 1 |
| 9 | Transfer zones in the East African rift system and their relevance to hydrocarbon exploration in rifts显示文摘 | Morley C K Nelson R A Patton T L | 1990 | AAPG Bulletin1990,74,: | 1 |
| 10 | Transfer zones in the East Africa rift system and their relevance to hydrocarbon exploration in rifts显示文摘 | Morley C K Nelson R A Patton T L | 1990 | AAPG1990,74,8: | 1 |
| 11 | Modeling Asymmetric Exchange Rate Dependence显示文摘 | Patton A J | 2006 | In- ternational Economic Review2006,47,2: | 1 |
| 12 | Discordant atrial natriuretic peptide and brain na/fiuretic peptide levels in lone atrial fibrillation显示文摘 | Elinor P Low A Patton K | 2005 | J Am Coil Car- dio2005,45,1: | 1 |
| 13 | Power system reliability evaluation using learning vector quantization and Monte Carlo simulation显示文摘 | Luo Xiaochuan Singh C Patton A D | 2003 | Electric Power Systems Research2003,66,2: | 1 |
| 14 | Gully erosion,Northwestern Colorado:a threshold phenomenon显示文摘 | Patton P C Schumm S A | 1975 | Geology1975,3,: | 1 |
| 15 | Maxillectomy: toreconstructorob - durate? Results of a UK survey of oral and maxillofacial surgeons显示文摘 | Ali A Fairly MJ Patton DW | 1995 | Br JOral-Maxillofac Surg1995,33,4: | 1 |
| 16 | Effect of ruminally protected methionine on splanchnic metabolism of amino acids in lactating dairy cows 显示文摘 | BERTHIAUME R M THIVIERGE C PATTON R A | 2006 | J Dairy Sci2006,89,5: | 1 |
| 17 | Discordant atrial natriuretic peptide and brain natriuretic peptide levels in lone atrial fibrillation 显示文摘 | Ellinor P T Low A F Patton K K | 2005 | J Am Coll Cardiol2005,45,1: | 1 |
| 18 | Fault-tolerance as a key requirement for the control of modern systems显示文摘 | Patton R J Kambhampati C Casavola A | 2006 | The International Federation of Automatic Control2006,6,1: | 1 |
| 19 | East African rift system and their relevance to hydrocar- bon exploration in rifts 显示文摘 | MORLEY C K NELSON R A PATTON T L | 1990 | AAPG Bulletin1990,74,8: | 1 |
| 20 | Transfer zones in the East African rift system and their relevance to hydrocarbon exploration in rifts显示文摘 | Morley C K Nelson R A Patton T L | | 0,,8: | 1 |