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| 1 | Xylanase, protease and superdosing phytase interactions in broiler performance, carcass yield and digesta transit time显示文摘The interaction of xylanase, protease and superdosing(1,500 FTU/kg) phytase in a 2×2×2 factorial arrangement was studied in broilers fed sorghum-based diets. A total of 2,800 one-day-old unsexed Ross308 chicks were housed in 56 pens with 50 birds per pen, with or without inclusion of xylanase, protease and phytase, totaling 8 treatments and 7 replicates per treatment. Body weight(BW) and feed intake(FI)were measured at 21 and 42 days of age, and mortality corrected feed conversion ratio(FCR) was calculated for each period and cumulatively. Tibia ash and carcass yield were determined in 2 birds per replicate at 21 and 42 days of age, respectively. Digesta transit time was determined at 21, 28, 35 and 42 days of age using 5 birds per replicate. Results showed that superdosing phytase increased BW and FI at42 days of age(P < 0.05) and xylanase improved FCR(P < 0.05). Xylanase and phytase also positively influenced carcass yield and breast weight, respectively. Overall, inclusion of superdosing phytase increased transit time when included in a diet containing xylanase, and no change with protease inclusion. In conclusion, the beneficial effects of xylanase, protease and superdosing phytase in broiler performance were not additive. This limitation is likely not related to the lack of efficacy of any one of the individual enzymes but to a limitation of the bird to respond additively to successive additions of enzymes. | Tiago T.dos Santos Helen V.Masey O'Neill Gemma González-Ortiz Daniel Camacho-Fernández Carlos López-Coello | 2017 | Animal Nutrition2017，，2： | 2 |
| 2 | 紫硫镍矿交代镍黄铁矿的水热反应机理及动力学显示文摘本工作首次在实验室条件下对浅生区紫硫镍矿(Ni,Fe)3S4交代镍黄铁矿(Ni,Fe)9S8水热反应的机理及动力学进行了研究。起始反应矿物采用高纯自然镍黄铁矿,合成纯镍黄铁矿或合成镍黄铁矿-磁黄铁矿集合体。反应pH值采用0.2M醋酸-醋酸纳缓冲溶液控制在3~5的范围内。反应进程由X-射线衍射物相定量分析及扫描电镜观察进行跟踪。结果表明,当反应温度恒定在80℃时,交代20(4)%的镍黄铁矿需792h。相同条件下加入少量H2S可将反应速率提高一倍。当反应在125℃饱和蒸汽压水热环境下进行时,完全交代纯镍黄铁矿需约168h。此过程由于磁黄铁矿的存在而被催化,交代集合体中的镍黄铁矿仅需68h,进一步反应磁黄铁矿被交代成白铁矿。磁黄铁矿的催化作用可能源于溶解产生的微裂纹加速了流体的传质过程。当反应温度升高至145℃时,速率反而下降,不遵循Arrhenius经验规律。动力学分析得80℃速率常数介于5.8×10-8~3.0×10-7/s之间,125℃及145℃速率常数分别介于2.8×10-6~2.08×10-5/s及1×10-6~5.1×10-6/s之间,远高于同温度下固相扩散反应的速率常数,表明该反应在地质时标上为一快速反应。此外,用背散射电子显微技术对矿物表面形貌进行了分析,发现交代产物紫硫镍矿具有颗粒细小及存在微裂纹等特征,与自然界浅生矿床中的紫硫镍矿非常相似;电镜实验还表明该交代作用是一个典型的耦合溶解-再沉淀反应。其耦合机制的驱动力可能与反应界面处微空隙对流体饱和度的控制有关。 | 夏方 陈国荣 Allan PRING Joёl BRUGGER Yung NGOTHAI Brain O'NEILL Chris COLBY Christophe TENAILLEAU 王海鹏 杨云霞 | 2007 | 地质学报2007，81，10： | 2 |
| 3 | 6-hydroxydopamine-induced apoptosis is mediated via extracellular auto-oxidation and caspase 3-dependent activation of protein kinase Cδ显示文摘 | Hanrott K Gudmunsen L O'Neill MJ | | 0，，09： | 1 |
| 4 | Landscape ecology: Ahierarchical perspective can help scientists understand spatial patterns显示文摘 | Urban D L O'Neill R V Shugart H H | 1987 | BioScience1987，37，： | 1 |
| 5 | The genesis of strategy in new ventures : escaping the constraints of founder and team knowledge 显示文摘 | FERN M J CARDINAL L B NEILL H M | 2012 | Strategic Management Journal2012，33，4： | 1 |
| 6 | Infusion of blood and other fluids via the bone marrow显示文摘 | Tocantins L O'Neill J Jones H | 1941 | JAMA1941，117，： | 1 |
| 7 | Deletion of skeletal muscle SOCS3 prevents insulin resistance in obesity 显示文摘 | Jorgensen SB O' Neill HM Sylow L | 2013 | Diabetes2013，62，1： | 1 |
| 8 | Radiological manifestations of skeletal lymphoma 显示文摘 | O' Neill J Finlay K Friedman L | 2009 | Curr Probl Diagn Radiol2009，38，： | 1 |
| 9 | The biomimetic iron-mediated degradation of arteflene (Ro-42-1611), an endoperoxide antimalarial implications for the mechanism of antimalarial activity 显示文摘 | O'Neill P M Bishop L P Sesrle N L | 1997 | Tet rahedron Lett1997，38，24： | 1 |
| 10 | 16SrRNA phy-logenetic analysis of the bacterial endosymbionts associatedwith cytoplasmic incompatibility in insects显示文摘 | O’Neill S L Giordano R Colbert A M | 1992 | PNAS1992，89，7： | 1 |
| 11 | A model for trophic interaction显示文摘 | DeAngelis D L Goldstein R A O'Neill R V | 1975 | Ecology1975，56，： | 1 |
| 12 | Bidirectional incompatibility between conspecilic populations of Drosophila simulans显示文摘 | O'Neill S L Karr T L | 1990 | Nature1990，348，6297： | 1 |
| 13 | Signal transduction by the lipopolysaccharide receptor,Toll- like receptor-4 显示文摘 | Palsson-McDermott E M O'Neill L A | 2004 | Immunology2004，113，： | 1 |
| 14 | Periprosthetic frac tures in the resurfaced hip-A case report and review of the lit- erature显示文摘 | Brennan SA Devitt BM O'Neill CJ et a l | 2013 | Injury2013，44，2： | 1 |
| 15 | Influence of microsupersonic gas jets on nanosecond laser percussion drilling 显示文摘 | KHAN A H CELOTTO S TUNNA L O'NEILL W XUTCLIFFE C J | 2007 | Optics and Lasers in Engineering2007，45，： | 1 |
| 16 | Diagnostic accuracy of noninvasive coronary angiography using 64-slice spiral computed tomograph显示文摘 | RAFF G L GALLAGHER M J NEILL W W | 2005 | J Am Coll Cardiol2005，46，： | 1 |
| 17 | The Troll in Toll: Mal and Tram as bridges for TLR2 and TLR4 signaling显示文摘 | Sheedy F J O'Neill L A | 2007 | J Leukoc Biol2007，82，： | 1 |
| 18 | Therapeutic targe- ting of toll-like receptors for infectious and inflammatory diseases and cancer显示文摘 | O' Neill L A Bryant C E Doyle S L | 2009 | Pharmacol Rev2009，61，2： | 1 |
| 19 | (llabo- rative hypertension case management by registered nurses and clinical pharmacy specialists within the Patient Aligned Care Teams ( PACT ) model 显示文摘 | O'Neill J L Cunningham T L Wiitala W L | 2014 | Journal of general internal medicine2014，29，2： | 1 |
| 20 | Targeting Toll-like receptors:emerging therap eutics?显示文摘 | Hennessy E J Parker A E O'Neill L A J | 2010 | Nat Rev Drug Discov2010，9，4： | 1 |
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