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395篇 您的检索式:作者名="Long Y Z"
    题名 作者 年代 出处 被引量
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
2Strong/weak summer monsoon activity over the South China Sea and atmospheric intraseasonal oscillation 显示文摘LI C Y LONG Z X ZHANG Q Y 2001Adv Atmos Sci2001,18,:1
3Electrical conductivity of an individual pol yanili ne nanotube synthesized by a self-assembly method 显示文摘Long Y Z Zhang L Q 2003Macromolecular Rapid C ommunications2003,24,16:1
4Application of the quadrilateral area coordinate method: A new element for Mindlin -Reissner plate 显示文摘Cen S Long Y Q Yao Z H Chiew S P 2006International Journal for Numerical Methods in Engineering2006,66,1:1
5Isolation and characterization endophytic bacteria from Sedum alfredii Hance and their potential to promote phytoextraction of zinc polluted soil 显示文摘LONG X X CHEN X M CHEN Y G WONG J W WEI Z B WU Q T 2010World Journal Microbiology Biotechnology2010,27,:1
6Determination of multi- residue for malachite green, gentian violet and their metabolites in aquatic products by high-performance liquid chromatography cou- pled with molecularly imprinted solid-phase extraction 显示文摘LONG CY MAI Z B YANG Y F 2009Jour- nal of Chromatography A2009,1216,:1
7Recent advances in solarcells based on one-dimensional nanostructure arrays 显示文摘YU M LONG Y Z SUN B 2012Nanoscale2012,4,9:1
8Clinical significance of IL-2, IL- l0, and TNF-alpha in prostatic secretion of patients with chronic prostatitis显示文摘He L Wang Y Long Z 2010Urology2010,75,3:1
9One step synthesis of silica-coated nanoparticles at room temperature and their luminescence properties显示文摘Wang Y L Lu J P Huang X F Long J X Tong Z F 2008Materials Letters2008,62,19:1
10Research on ZrsoAl~5-xNitoCu2sYx amorphous alloys prepared by mechanical alloying with commercial pure element powders显示文摘Long W Y Ouyang X Q Luo Z W 2011Physica B2011,406,3:1
11Shifting and non-shifting fluorescence emitted by carbon nanodots 显示文摘LONG Y M ZHOU C H ZHANG Z L 2012Journal of Materials Chemistry2012,22,13:1
12Classification of wheat low-molecular-weight glutenin subunit genes and its chromosome assignment by developing LMW-GS groupspecific primers 显示文摘LONG H WEI Y M YAN Z H 2005Theor Appl Genet2005,111,:1
13Urbanization and Sustainabili- ty in China: An Analysis Based On the Urbanization Kuznets- Curve 显示文摘Yang D F Yin C Z Long Y 2013Planning Theory2013,12,4:1
14Performance analysis ofa diffusion absorption refrigeration cycle working withTFE-TEGDME mixture显示文摘LONG Z LUO Y LI H S 2012Energy and buildings2012,58,:1
15Assessment of heavy metals contamination in urban topsoil from Changchun City, China显示文摘YANG Z P LU W X LONG Y Q 2011J Geochem Explor2011,108,1:1
16The LMS algorithm with delayed coefficient adaptation显示文摘LONG G Z LING F Y Proakis J G 1989IEEE Transactions on Acoustics Speech and Signal Processing1989,37,9:1
17Characterization of black chromate conversion coating on the eleetrodeposited zinc-iron alloy 显示文摘LONG Z L ZHOU Y C XIAO L 2003Applied Surface Science2003,218,1234:1
18Involvement of EBV - encoded BART - miRNAs and dysregulated cellular miRNAs in nasopharyn- geal carcinoma genesis显示文摘XIE Y J LONG Z F HE X S 2013Asian Pac J Cancer Prey2013,14,10:1
19Discrimination of Chinese rice wines of different geographical origins by UV-vis spectroscopy and chemometrics显示文摘Wu Z Z Li H Y Long J 2015J Inst Brewing2015,121,1:1
20Electrical conductivity of a single conducting polyaniline nanotube显示文摘Long Y Z Chen Z J Wang N L 2003Appl Phys Lett2003,83,:1
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