欢迎来到天天文库
浏览记录
ID:53024758
大小:383.46 KB
页数:7页
时间:2020-04-12
《白花草木樨与玉米秸秆混合青贮的发酵品质及有毒成分分析-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、31卷O2期草业科学321—327Vo1.31,No.02PRATACULTURAISCIENCEO2/2O14DOI:10.11829\j.issn.i001—0629.2013—0464oooo。。白花草木樨与玉米秸秆混合青贮的3后生物l生产层2QS∞∞<>.:。p发酵品质及有毒成分分析李树成,黄晓辉,王静,李东华,王彦荣(草地农业生态系统国家重点实验室兰州大学草地农业科技学院,甘肃兰州730020)摘要:本试验设置白花草木樨(Melilotusalbus)与玉米(Zeamays)秸秆的比例为10:0,8:2,6:4,4:6,2:8,0:10共6个青贮比例处理,3O、4
2、5和60d3个青贮时间处理,测定发酵品质、化学成分和香豆素、双香豆素含量,由此确定白花草木樨和玉米秸秆混合青贮的最佳比例和时间。结果表明,随着白花草木樨比例增大,各混贮中pH值、氨态氮/总氮和粗蛋白含量呈升高趋势,乳酸、中性洗涤纤维和酸性洗涤纤维含量呈降低趋势,各处理青贮饲料较青贮原料中香豆素和双香豆素含量显著降低(P3、d后,随时间延长,青贮品质、香豆素及双香豆素含量无明显变化。关键词:发酵品质;香豆素;双香豆素中图分类号:$816.6文献标识码:A文章编号:i001—0629(2014)02—0321—07EffectsofdifferentmixedratioandfermentingperiodonefficiencyofmixedsilageofMelilotusalbusandcornstrawLIShu—cheng,HUANGXiao—hui,WANGJing,LIDong—hua,WANGYan—rong(StatyeKeyLaboratoryofGrasslandAgro—4、ecosystems;CollegeofPastoralAgricultureScienceandTechnology,LanzhouUniversity,Lanzhou730020,China)Abstract:Melilotusalbusandcornstrawweremixedandsilagedatratioof10:0,8:2,6:4,4:6,2:8and0:10,respectively.Thenutritioncomposition,fermentationquality,coumarinanddicoumarolcon—tentweremeasuredaft5、er30,45and6Odensilage.TheaimsofthisstudyweretoseekoptimalmixedsilageradioandensilingdaysofM.albusandcornstraw,improvethefermentationqualityandnutritioncomposition,andreducethecontentofcoumarinanddicoumaro1.Theresultshowedthat,withtheincreaseoftheproportionofM.albus,pH,ammonia/totalnitrogen6、,crudeproteinandlacticacidincreasedwhiletheneutraldetergentfiberandaciddetergentfiberdecreased.Thecoumarinanddicoumarolcontentsofallmixedsilageweresignificantlylower(P<0.05)thanrawmaterialofM.albus.ThemixedsilagewithM.albusandcornstrawatratioof2:8wasbestasthepHvaluereducedto3.87~4.03,theco7、ntentofcrudeproteinincreasedby38.349/6~46.47comparedwithsinglecornstrawsilageandthecoumarinanddicoumarolcontentdecreasedby8O.99~81.82and90.52~91_O0comparedtorawmateria1ofM.albus.Ensilingdayshadnosignificanteffectonthefermentationqualityandcontentofcoumarinand收
3、d后,随时间延长,青贮品质、香豆素及双香豆素含量无明显变化。关键词:发酵品质;香豆素;双香豆素中图分类号:$816.6文献标识码:A文章编号:i001—0629(2014)02—0321—07EffectsofdifferentmixedratioandfermentingperiodonefficiencyofmixedsilageofMelilotusalbusandcornstrawLIShu—cheng,HUANGXiao—hui,WANGJing,LIDong—hua,WANGYan—rong(StatyeKeyLaboratoryofGrasslandAgro—
4、ecosystems;CollegeofPastoralAgricultureScienceandTechnology,LanzhouUniversity,Lanzhou730020,China)Abstract:Melilotusalbusandcornstrawweremixedandsilagedatratioof10:0,8:2,6:4,4:6,2:8and0:10,respectively.Thenutritioncomposition,fermentationquality,coumarinanddicoumarolcon—tentweremeasuredaft
5、er30,45and6Odensilage.TheaimsofthisstudyweretoseekoptimalmixedsilageradioandensilingdaysofM.albusandcornstraw,improvethefermentationqualityandnutritioncomposition,andreducethecontentofcoumarinanddicoumaro1.Theresultshowedthat,withtheincreaseoftheproportionofM.albus,pH,ammonia/totalnitrogen
6、,crudeproteinandlacticacidincreasedwhiletheneutraldetergentfiberandaciddetergentfiberdecreased.Thecoumarinanddicoumarolcontentsofallmixedsilageweresignificantlylower(P<0.05)thanrawmaterialofM.albus.ThemixedsilagewithM.albusandcornstrawatratioof2:8wasbestasthepHvaluereducedto3.87~4.03,theco
7、ntentofcrudeproteinincreasedby38.349/6~46.47comparedwithsinglecornstrawsilageandthecoumarinanddicoumarolcontentdecreasedby8O.99~81.82and90.52~91_O0comparedtorawmateria1ofM.albus.Ensilingdayshadnosignificanteffectonthefermentationqualityandcontentofcoumarinand收
此文档下载收益归作者所有