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561篇 您的检索式:作者名="Tian L F"
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1饲料中添加蛋白酶对肉鸡性能、养分利用率、肠道形态和胴体品质的影响显示文摘试验在饲喂玉米、高粱为主的肉鸡日粮中补充大豆,并添加蛋白酶,研究蛋白酶对肉鸡性能、养分消化率、肠道形态和胴体品质的影响。试验选取1日龄AA肉仔鸡(43.8±1.31 g)256只,均为公鸡,随机分配到2×2试验设计方阵中,方阵包括正常组(玉米组和高粱组)和蛋白酶组(空白组和添加蛋白酶150 mg·kg^(-1)的试验组)。试验1~21 d为第一阶段,22~42 d为第二阶段。试验结果表明,第二阶段中,日粮中添加蛋白酶极显著提高肉鸡的平均日增重(ADG,P<0.01),在整个试验过程中显著提高(P<0.05)。在各个时期,正常组对肉鸡生产性能均无显著影响(P>0.05)。19~21 d时,添加蛋白酶可显著提高肉鸡的表观代谢能(AME),干物质(DM)、总能量(GE)和养分消化率(P<0.05)。此外,日粮以高粱为主时,AME、GE消化率有降低趋势(P=0.05),氮沉积率也有降低趋势(P=0.08)。40~42 d时,日粮中添加蛋白酶可显著提高AME,DM、GE和氮沉积率(P<0.05)。21 d时,日粮中添加蛋白酶极显著增加肠绒毛高度、肠绒毛与隐窝深度比值,极显著降低十二指肠、空肠、回肠的隐窝深度(P<0.01)。42 d时,日粮中添加蛋白酶显著增加空肠肠绒毛高度、绒毛高度与隐窝深度比值,显著降低隐窝深度(P<0.05)。日粮中添加蛋白酶显著增加胸肌重、24 h p H,显著降低胸肌的滴水损失(P<0.05)。试验结果表明,饲养阶段日粮中添加复合蛋白酶可提高肉鸡ADG;在第一阶段可改善AME、DM、GE和氮沉积率和肠道形态。补充蛋白酶可提高出栏重、胸肌重和24 h pH,降低胸肌的滴水损失。低单宁高粱日粮与玉米日粮相比,对肉鸡性能的影响相近。Xu X Wang H L Pan L Ma X K Tian Q Y Xu Y T Long S F Zhang Z H Piao X S 2017饲料博览2017,0,1:2
2A new approach to fault section estimation in power systems using ant system显示文摘 Tian L Wen F S 1999Electric Power System Research1999,41,:1
3A novel conflict reassignment method based on grey relational analysis (GRA)显示文摘Xu G P Tian W F Qian L 2007Pattern Recognition Letters2007,28,15:1
4Adv Mater显示文摘Liu F Tian J F Bao L H 200820(13): 26092008,20,13:1
5Artificial gynogenesis and sex determination in half-smooth tongue sole ( Cynoglossus semilaevis) 显示文摘Chen S L Tian Y S Yang J F 2009Marine Biotechnology2009,11,2:1
6HSO4 acidic ionic liquid as a novel, efficient, and environmentally benign catalyst for synthesis of 1, 5-benzodiazepines under mild conditions显示文摘Du Y Y Tian F L Zhao W Z 2006Synthetic Communications2006,36,12:1
7A dynamic recurrent neural network-based controller for a rigid-flexible manipulator system显示文摘Tian L F Collins C 2004Mechatronics2004,,14:1
8Hepatocellular glycogen in alleviation of liver ischemia-reper fusion injury during par tialhepatectomy 显示文摘TANG L TIAN F TAO W 2007World J Surg2007,31,10:1
9Simultaneous determination of four active components in Swertia by RP-HPLC 显示文摘Tian L Y Chen J C Huang F J 2008Chin JNat Med2008,6,6:1
10Oxygen-18 concentrations in recent precipitation and ice cores on the Tibetan Plateau显示文摘Tian L D Yao T D Schuste P F 2003Journal of Geophysical Re- search2003,108,9:1
11Optimized of AM and AA Copolymerizing Reaction Condition by Thermal Inducing显示文摘Yan X L Yan W L Tian Z F 2009JournaL of YiLi NormaL University (Natural Science Edition)2009,,2:1
12Sources and seasonal variation of atmospheric polycyclic aromatic hydrocarbons in Dalian,China:Factor analysis with non-negative constraints combined with local source fingerprints显示文摘Tian F L Chen J W Qiao X L 2009Atmospheric Environment2009,43,:1
13Relationship between soil moisture content and soil surface reflectance显示文摘Kaleita A L Tian L F Hirschi M C 2005Transactions of the Asae2005,48,5:1
14Purification and characterization oflevansucrases from Bacillus amyloliquefaciens in intra-and extracellularforms useful for the synthesis of levan and fructooligosaccharides 显示文摘Tian F Inthanavong L Karboune S 2011Biosci Biotechnol Biochem2011,75,10:1
15Hot Deformation and Processing Map of 15% SiCp/2009 Al Composite 显示文摘Xiao B L Fan J Z Tian X F 2005Journal of Materials Science2005,40,:1
16Structural stability of polymeric nitro- gen : a first-principles investigation显示文摘Wang X Tian F Wang L 2010The Journal of Chemical Physics2010,132,02:1
17Protective Effects of Exogenous ,8-Hydroxybutyrate on Paraquat Toxicity in Rat Kidney 显示文摘Wei T Tian W L Liu F N 2014Biochemical and Biophysical Research Communications2014,447,4:1
18Development and Characterization of a Core Set of SSR Markers for Finger- printing Analysis of Chinese Maize Farieties 显示文摘WANG F G TIAN H L ZHAO J R 2011Maydica2011,56,:1
19Modeling population density using land cover data显示文摘Tian Y Z Yue T X Zhu L F 2005Ecological Modelling2005,189,12:1
20Classification of broadleaf andgrass weeds using Gabor wavelets and an artificial neuralnetwork显示文摘Tang L Tian L F Steward B L 2003American Society of Agricultural Engineers2003,46,4:1
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