草地学报

›› 2008, Vol. 16 ›› Issue (1): 81-84.DOI: 10.11733/j.issn.1007-0435.2008.01.016

• 研究报告 • 上一篇    下一篇

甲酸对二色胡枝子青贮品质的影响

丁武蓉1, 干友民1, 郭旭生3, 杨富裕2   

  1. 1. 四川农业大学草业科学系, 四川, 雅安, 625014;
    2. 兰州大学干旱与草地生态教育部重点实验室, 兰州, 730000;
    3. 中国农业大学草地研究所, 北京, 100094
  • 收稿日期:2007-04-02 修回日期:2007-11-23 出版日期:2008-02-15 发布日期:2008-02-15
  • 通讯作者: 杨富裕, E-mail:yfuyu@126.com
  • 作者简介:丁武蓉(1982- ),女,四川成都人,硕士研究生,研究方向为牧草加工与利用的研究,E-mail:dingwurong2005@163.com
  • 基金资助:
    十一五科技支撑项目(2006BAD16B08);引进国际先进农业技术项目(2006-G38)

Effect of Formic Acid on Silage Quality of Ensiled Lespedeza bicolor

DING Wu-rong1, GAN You-ming1, GUO Xu-sheng3, YANG Fu-yu* 2   

  1. 1. Department of Grassland Science, Sichuan Agricultural University, Ya'an, Sichuan Province, 625014, China;
    2. Institute of Grassland Science, China Agricultural University, Beijing, 100094, China;
    3. Key Laboratory of Arid and Grassland Ecology, Lanzhou University, Ministry of Education, Lanzhou, Gansu Province, 730000, China
  • Received:2007-04-02 Revised:2007-11-23 Online:2008-02-15 Published:2008-02-15

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摘要： 以二色胡枝子(Lespedeza bicolor Turcz.)为青贮原料,研究甲酸添加量(0、2、4、6 mL/kg鲜重)对其青贮品质的影响,以期为二色胡枝子的有效利用提供科学依据。结果表明:随甲酸添加量的增加胡枝子青贮料中pH值和氨态氮含量以及干物质损失率均呈降低趋势,而且贮料中的水溶性糖逐渐增加;添加甲酸能显著降低青贮料中NDF和ADF的含量(P<0.05);6mL/kg甲酸组对抑制青贮发酵效果最明显,有机酸产量最低;随甲酸添加量的增加,青贮料中丁酸的含量也增加,使青贮料的发酵品质有所降低。

关键词: 甲酸, 二色胡枝子, 青贮品质, 氮化合物成分

Abstract: The effects of different formic acid concentration(0, 2,4,6 mL/kg fresh weight) on the silage quality of Lespedeza bicolor Turcz.were studied.The results show that formic acid significantly decreased the pH value and content of NH3-N,and increased water soluble carbohydrate and dry matter contents in the ensiled forage.Formic acid significantly reduced the content of NDF and ADF in the ensiled forage(P<0.05).At the adding rate of 6 mL/kg fresh weight,formic acid could effectively inhibit the nature fermentation of the ensiled forage.The fermentation quality appeared to decrease and butyric acid content increased with the increased concentration of formic acid added to the silages.

Key words: Formic acid, Lespedeza bicolor Turcz., Silage quality, Nitrogen distribution

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