Acta Agrestia Sinica ›› 2014, Vol. 22 ›› Issue (6): 1348-1352.DOI: 10.11733/j.issn.1007-0435.2014.06.031

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Effects of Different Lactic Acid Bacteria Additives on the Silage Quality of the Native Grass

SHAO Xin-qing1, LIU Yue-hua1, LIU Ting-yu2, WANG Zhi-xue1, WEI Xiao-ting1, ZHONG Meng-ying1, WU Rui-xin1,3, PAN Duo1   

  1. 1. Grassland Science Department, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    2. Inner Mongolia Nationality University, Tongliao, Inner Mongolia 028000, China;
    3. Pratacultural college, Gansu Agricultural University, Lanzhou, Gansu Province 730070, China
  • Received:2014-04-23 Revised:2014-05-29 Online:2014-12-15 Published:2014-12-01

不同乳酸菌添加剂对天然牧草青贮品质的影响

邵新庆1, 刘月华1, 刘庭玉2, 王志学1, 位晓婷1, 钟梦莹1, 武瑞鑫1,3, 潘多1   

  1. 1. 中国农业大学动物科技学院 草地研究所, 北京 100193;
    2. 内蒙古民族大学, 内蒙古 通辽 028000;
    3. 甘肃农业大学 草业学院, 甘肃 兰州 730070
  • 通讯作者: 刘庭玉
  • 作者简介:邵新庆(1969-),男,甘肃天水人,副教授,主要从事草地管理和草地恢复研究,E-mail:shaoxinqing@163.com
  • 基金资助:

    国家牧草产业技术体系(CARS-35);公益性行业(农业)科研专项(201203006);国家科技支撑计划(2012BAC01B02)资助

Abstract:

The native mixed grass mowed from semi-arid mountain steppe in Inner Mongolia was used as material to make silage by adding different lactic acid bacteria additives. After stored for 45 days, all treatments were sampled for the analysis of fermentation quality and chemical composition to study the influence of different lactic acid bacteria additives on the quality of natural grass silage and to screen out the most suited additives. The result indicated that five lactic acid bacteria additives all could improve the silage quality inordinately. By a sensory evaluation, the treatments adding lactic acid bacteria were superior to the control. The analyses of fermentation quality and chemical composition showed that Zhongnong NO.1 was the best lactic acid bacteria to increase lactic acid content and decrease the ammoniacal nitrogen content, pH, and acid detergent fiber of silage, followed by Zhongnong NO.3, and the advantages of others were non-significant.

Key words: Native grass, Silage, Lactic acid bacteria, Fermentation quality

摘要:

以内蒙古半干旱山地草原天然混合牧草为原料,通过添加不同的乳酸菌添加剂进行青贮对比试验,探讨不同乳酸菌添加剂对天然牧草青贮饲料品质的影响,筛选适宜的乳酸菌添加剂.结果表明:5种添加剂均能不同程度地改善天然牧草青贮品质,经过感官评定,乳酸菌添加剂青贮饲料优于对照组;青贮饲料的发酵品质和营养价值综合分析表明,在提高乳酸含量,降低氨态氮含量、pH值、酸性洗涤纤维等方面表现最佳的是中农1号乳酸菌,其次是中农3号,中农2号、4号和8号添加剂青贮效果改善不明显.

关键词: 天然牧草, 青贮, 乳酸菌, 发酵品质

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