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甲酸或绿汁发酵液对苜蓿青贮影响的研究
引用本文:许庆方,玉柱,李胜利,韩建国,白春生,薛艳林,白景隆,黄毅. 甲酸或绿汁发酵液对苜蓿青贮影响的研究[J]. 畜牧兽医学报, 2008, 39(12)
作者姓名:许庆方  玉柱  李胜利  韩建国  白春生  薛艳林  白景隆  黄毅
作者单位:1. 中国农业大学动物科技学院,北京,100193;山西农业大学动物科技学院,太谷,030801
2. 中国农业大学动物科技学院,北京,100193
3. 北京奶牛中心,北京,100085
基金项目:引进国际先进农业科学技术计划(948计划),北京市教委共建项目,国家科技支撑计划,山西农业大学博士后基金,山西农业大学博士科研启动基金 
摘    要:为探讨添加甲酸和绿汁发酵液对拉伸膜裹包苜蓿青贮发酵品质和营养价值的影响,分别按每吨鲜苜蓿添加6L甲酸或2L绿汁发酵液,并以不使用添加剂而晾晒处理为对照,整株打圆捆,拉伸膜裹包6层青贮,贮藏300d后取样分析测定。添加甲酸和绿汁发酵液苜蓿青贮的pH分别为4.32和4.25,显著低于晾晒处理的5.22(P〈0.05);而乳酸含量分别为6.26%和6.63%,显著高于晾晒处理的0.24%(P〈0.05);而晾晒处理苜蓿青贮的氨氮含量显著减少(P〈0.05)。虽然苜蓿青贮的NDF、ADF等营养物质含量没有差异,但添加甲酸可显著提高苜蓿青贮DM、OM、CP、NDF、ADF的有效降解率(P〈0.05)。晾晒处理组CP含量显著降低,而且DM、OM、CP、ADF的有效降解率也显著降低。

关 键 词:拉伸膜裹包苜蓿青贮  甲酸  绿汁发酵液  瘤胃降解

The Effect of Formic Acid or Previous Fermented Juice on Baled Afalfa Silage
XU Qing-fang,YU Zhu,LI Sheng-li,HAN Jian-guo,BAI Chun-sheng,XUE Yan-lin,BAI Jing-long,HUANG Yi. The Effect of Formic Acid or Previous Fermented Juice on Baled Afalfa Silage[J]. Chinese Journal of Animal and Veterinary Sciences, 2008, 39(12)
Authors:XU Qing-fang  YU Zhu  LI Sheng-li  HAN Jian-guo  BAI Chun-sheng  XUE Yan-lin  BAI Jing-long  HUANG Yi
Affiliation:XU Qing-fang1,2,YU Zhu1,LI Sheng-li1,HAN Jian-guo1*,BAI Chun-sheng1,XUE Yan-lin1,BAI Jing-long1,HUANG Yi3(1.College of Animal Science , Technology,China Agricultural University,Beijing 100193,China,2.College of Animal Science , Veterinary Medicine,Shanxi Agricultural University,Taigu 030801,3.Beijing Dairy Centre,Beijing 100085,China)
Abstract:The effects of formic acid and previous fermented juice on fermentation and nutrient of baled alfalfa silage were studied.The wilted forage as CK,the amount of formic acid and previous fermented juice were 6 L/t and 2 L/t,respectively.Unchopped alfalfa baled and wrapped with 6 layers stretch film.After storage 300 d,the bale opened and sampled to analyze fermentation quality and nutrient value.Compared with formic acid and previous fermented juice treatment,which the pH value were 4.32 and 4.25,the wilted a...
Keywords:baled alfalfa silage  formic acid  previous fermented juice  ruminal degradability  
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