维普中文期刊产品整合服务
377篇 您的检索式:作者名="LONG X L"
    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
2Catalyticrole of Cu sites of Cu/MCM-41in phenol hydroxylation显示文摘ZHANG G Y LONG J L WANG X X 2010Langmuir2010,26,2:1
3Altered bone morphogenetic pro-tein and transforming growth factor-beta signaling in rat models of pul-monary hypertension:potential for activin receptor-like kinase-5 inhi-bition in prevention and progression of disease显示文摘Long L Crosby A Yang X 2009Circulation2009,119,4:1
4Can improved photosynthesis increase crop yields? 显示文摘Long S P Zhu X G Naidu S L 2006Plant Cell Environ2006,29,:1
5CH4-CO2 reforming by plasma-challenges and opportunities显示文摘TAO X M BAI M G LI X LONG H L SHANG S Y YIN Y X DAI X Y 0,,02:1
6Improved Newton's method with exact line searches to solve quadratic matrix equation显示文摘Long J H Hu X Y Zhang L 2008Journal of Computational and Applied Mathematics2008,222,:1
7Effect of root contact on interspecific competition and N transfer between wheat and fababean using direct and indirect N techniques显示文摘 LONG L FUDUO Z 2004Plant and Soil2004,262,:1
8General scheme for super dense coding between multi-parties 显示文摘LIU X S LONG G L TONG D M 2002Phys Rev2002,,02:1
9Effect of annealing on mechanical properties of copper alloys deformed at cryogenic temperature 显示文摘WU X GONG Y REN S TAO J LONG Y CHENG L ZHU X 2013Materials Science Forum2013,,:1
10Can improvement in photosynthesis increase crop y eldsV显示文摘Long S P Zhu X G Naidu S L Ort D R 2006Plant Cell Environment2006,29,3:1
11One 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
12Novel homogeneous catalyst system for the oxidation of concentrated ammonium sulfite显示文摘LONG X L LI W XIAO W D 2005Journal of Hazardous Materials2005,129,123:1
13Membrane flux and CaCOa crystallization in the unstirred dead-end nanofiltration of magnetic so- lution显示文摘LONG F ZHU A WANG X L 2005Desalination2005,186,:1
14Improved Newton's method with exact line searches to solve quadratic matrix equation显示文摘Long J H Hu X Y Zhang L 0,,02:1
15The effect of postharvest calcium application in hydro-cooling water on tissuecalcium content, biochemical changes, and quality attributes of sweet cherry fruit显示文摘WANG Y XIE X B Long L E 2014Food Chemistry2014,160,:1
16Penglai zircon megacrysts:a potential new working reference for microbeam Determination of Hf-O isotopes and U-Pb age显示文摘Li X H Long W G Li Q L 2010Geostandards and Geoanalytical Research2010,34,2:1
17Molecular capsules based on cucurbituril encapsulating 'naked' anion chlorine显示文摘Liu J -X Long L -S Huang R -B Zheng L -S 2006Cryst Growth Des2006,,6:1
18The spaceflight environment can induce transpositional activation of multiple endogenous transposable elements in a genotype-dependent manner in rice 显示文摘Long L K Ou X F Liu J C Lin X Y Sheng L X Liu B 2009Journal of Plant Physiology2009,166,:1
19Can improved photosynthesis increase crop yields? 显示文摘LONG S P ZHU X G NAIDU S L 2006Plant Cell Environ2006,29,:1
20显示文摘LIU J X LONG L S HUANG R B 2006Cryst Growth Des2006,6,11:1
返回顶部 每页显示:
共19页 首页 上一页 第1页 下一页 末页 /19 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费