Studies of Fresh or Wilted Sainfoin Silage with Selected Additives

doi:10.11733/j.issn.1007-0435.2011.06.018

›› 2011, Vol. 19 ›› Issue (6): 995-999.DOI: 10.11733/j.issn.1007-0435.2011.06.018

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Studies of Fresh or Wilted Sainfoin Silage with Selected Additives

LIU Ling¹, CHEN Xin², XU Qing-fang¹, YU Zhu³, WANG Bao-ping¹, SUN Qi-zhong⁴, SHI Yong-hong⁵, LIU Jian-ning⁵

1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China;
2. Grassland General Station of Xinjiang, Urumqi, Xinjiang 830049, China;
3. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
4. Grassland Research Institute, Chinese Academy of Agricultural Sciences, Huhhot, Inner Mongolia 010010, China;
5. Animal Husbandry and Veterinary Institute, Shanxi Academy of Agricultural Sciences, Taiyuan, Shanxi Province 030032, China

Received:2011-07-04 Revised:2011-09-20 Online:2011-12-15 Published:2012-07-09

添加剂对红豆草鲜贮或晾晒后青贮品质的影响

刘玲¹, 陈新², 许庆方¹, 玉柱³, 王保平¹, 孙启忠⁴, 石永红⁵, 刘建宁⁵

1. 山西农业大学动物科技学院, 山西太谷030801;
2. 新疆草原总站, 新疆乌鲁木齐830049;
3. 中国农业大学动物科学院, 北京100193;
4. 中国农业科学院草原研究所, 内蒙古呼和浩特010010;
5. 山西省农科院畜牧兽医研究所, 山西太原030032

通讯作者: 许庆方,E-mail:xqfsx@sohu.com
作者简介:刘玲(1976- ),女,山西阳泉人,硕士,讲师,从事饲料资源开发与利用的研究,E-mail:lijiaqi2003@163.com
基金资助:
山西省科技攻关计划项目“青贮饲料布氏乳杆菌制剂的研制与开发”(20100311052);十二五国家科技支撑计划“优质牧草资源开发与多元化草产品加工利用关键技术研究与示范”(2011BAD17B02);国家牧草产业技术体系建设专项资助

Abstract

Abstract: Effects of different additives on fresh or wilted sainfoin silage were studied to provide scientific guidelines of sainfoin silage production.Sainfoin forages were divided into fresh and wilted groups.Each group was treated with formic acid(6 mL·kg^-1) and sucrose(2%) before ensiling,respectively.Silage was sampled and analyzed after storage 360 d.Results showed that wilting and formic acid improved silage fermentation quality.Acetic acid(P<0.05) and ammonia nitrogen content of silage(P<0.01) were significantly reduced,and dry matter content of silage was significantly increased(P<0.01) in wilted group compared with the fresh group.The pH value,acetic acid content,ammonia nitrogen content(P<0.01),neutral detergents fiber and acid detergent fiber content of silage were significantly reduced(P<0.05),and lactic acid content of silage was significantly increased(P<0.01) in the formic acid treatment compared with control(no additives).Nitrate content of silage decreased while nitrite content of silage increased after ensiling.These results indicated that formic acid can improve the fermentative quality of sainfoin silage.

Key words: Sainfoin, Quality of silage, Additive, Moisture content

摘要： 探讨不同含水量和添加剂对红豆草(Onobrychis viciaefolia Scop.)青贮品质的影响,为红豆草青贮饲料的调制提供科学依据。将红豆草分为2组,其中1组以鲜样进行青贮,分别设对照、添加甲酸(6mL·kg^-1)和蔗糖(2%)处理;另1组晾晒后进行同样的处理;袋装密封青贮360d后取样分析。结果表明:晾晒处理能够改善红豆草青贮饲料的发酵品质,晾晒后青贮可以显著降低乙酸含量(P<0.05),极显著地降低青贮饲料中氨态氮含量(P<0.01)。添加甲酸能够极显著降低红豆草青贮饲料的pH、乙酸和氨态氮含量(P<0.01),提高乳酸的生成量(P<0.01)。晾晒可以极显著地增加青贮饲料中干物质(DM)含量(P<0.01);添加甲酸可以显著降低青贮饲料中的中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)含量(P<0.05)。与原料相比,青贮之后硝酸盐含量显著下降,而亚硝酸盐含量增加。红豆草在单独青贮时因较高的缓能值和低含量的碳水化合物(WSC)而不易调制为优质的青贮饲料,通过添加甲酸可以显著改善红豆草青贮饲料的发酵品质。

关键词: 红豆草, 青贮品质, 添加剂, 含水量

CLC Number:

S816.7

LIU Ling, CHEN Xin, XU Qing-fang, YU Zhu, WANG Bao-ping, SUN Qi-zhong, SHI Yong-hong, LIU Jian-ning. Studies of Fresh or Wilted Sainfoin Silage with Selected Additives[J]. , 2011, 19(6): 995-999.

刘玲, 陈新, 许庆方, 玉柱, 王保平, 孙启忠, 石永红, 刘建宁. 添加剂对红豆草鲜贮或晾晒后青贮品质的影响[J]. , 2011, 19(6): 995-999.

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Studies of Fresh or Wilted Sainfoin Silage with Selected Additives

添加剂对红豆草鲜贮或晾晒后青贮品质的影响

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