›› 2009, Vol. 11 ›› Issue (4): 133-138.

• 研究简报 • 上一篇    

不同添加剂对白三叶青贮发酵品质与体外消化率的影响

玉柱1,陈燕1,孙启忠2,于艳冬3   

  1. 1.中国农业大学草地研究所, 北京 100193;2.中国农业科学院草原研究所, 呼和浩特 010010;3.南京农业大学动物科技学院, 南京 210095
  • 收稿日期:2008-10-23 修回日期:2009-02-05 出版日期:2009-08-15 发布日期:2009-07-24
  • 通讯作者: 孙启忠,教授,主要从事牧草生产与草地改良技术研究。Tel:0471-4926909;E-mail:sunqz@126.com
  • 作者简介:玉柱,副教授,研究方向为饲草加工贮藏与利用。Tel:010-62733414;E-mail:yuzhu3@sohu.com
  • 基金资助:

    国家牧草产业技术体系项目;中央公益性行业科研专项(nyhyzx07-022);国家“十一五”科技支撑计划项目(2006BAD16B08;2006BAD04-06-06)资助。

Effects of Different Additives on Silage Fermentation Quality and in vitro Digestibility of White Clover

YU Zhu 1, CHEN Yan 1, SUN Qi-zhong 2, YU Yan-dong 3   

  1. 1.Institute of Grassland Science, China Agricultural University, Beijing 100193;2.Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot 010010;3.Animal Science and Technology College, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2008-10-23 Revised:2009-02-05 Online:2009-08-15 Published:2009-07-24

摘要:

以白三叶为原料,通过添加青宝Ⅱ号(FS)、纤维素酶(CE)、糖蜜(M)和甲酸(FA)等添加剂,研究添加剂对白三叶青贮饲料发酵品质和体外消化率的影响。结果表明:白三叶能单独青贮,但不能获得发酵品质优良的青贮饲料;添加甲酸可显著提高青贮饲料的可溶性糖含量,降低pH值和氨态氮含量(P<0.05);添加糖蜜可显著提高青贮饲料的乳酸和可溶性糖含量,显著降低pH值、氨态氮含量,减少中性和酸性洗涤纤维含量(P<0.05);青宝Ⅱ号以及青宝Ⅱ号和纤维素酶的混合添加可显著提高乳酸含量,降低pH值(P<0.05)。不同添加剂及组合对白三叶青贮料的干物质、粗蛋白质、中性洗涤纤维和酸性洗涤纤维的体外消化率等具有不同影响。

关键词: 白三叶;青贮;添加剂;发酵品质;体外消化率

Abstract:

The experiment was conducted to investigate the effect of different additives on silage fermentation quality  of white clover and in vitro digestibility. The silage additives include:FAST-SILE(FS), cellulase (CE), molasses (M) and  formic acid (FA). The result shows that white clover can be silaged by itself, but can not obtain silage feed with good fermentation quality. Adding formic acid can significantly increase the contents of soluble sugar, decrease the pH value and the content of WSC (P<0.05). Adding molasses can notably increase the contents of lactic acid and WSC, decrease the pH value and the contents of ammonia-N, NDF and ADF (P<0.05). Different additives and additive groups have different effects on in vitro digestibility of DM, CP, NDF and ADF.

Key words: white clover, silage, additives, fermentation quality, in vitro digestibility

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