草地学报

›› 2010, Vol. 18 ›› Issue (6): 848-853.DOI: 10.11733/j.issn.1007-0435.2010.06.018

• 研究论文 • 上一篇    下一篇

淋雨对苜蓿干草品质的影响

许庆方1, 王保平1, 董宽虎1, 玉柱2, 孙启忠3, 蒙淑芳1, 秦立刚1, 刘豪1   

  1. 1. 山西农业大学动物科技学院, 山西, 太谷, 030801;
    2. 中国农业大学动物科学院, 北京, 100193;
    3. 中国农业科学院草原研究所, 内蒙古, 呼和浩特, 010010
  • 收稿日期:2010-06-11 修回日期:2010-11-03 出版日期:2010-12-15 发布日期:2010-12-15
  • 作者简介:许庆方(1972- ),男,山西壶关人,教授,博士,从事牧草栽培与加工利用的研究,E-mail:xqfsx@sohu.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)”;农业部948项目“饲草型发酵混合饲料加工技术(2010-C15)”;国家牧草产业技术体系建设专项;山西农业大学博士后基金资助

Effects of Rain on Alfalfa Hay(Medicago sativa L.)

XU Qing-fang1, WANG Bao-ping1, DONG Kuan-hu1, YU Zhu2, SUN Qi-zhong3, MENG Shu-fang1, QIN Li-gang1, LIU Hao1   

  1. 1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China;
    2. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    3. Grassland Research Institute, Chinese Academy of Agricultural Sciences, Huhhot, Inner Mongolia 010010, China
  • Received:2010-06-11 Revised:2010-11-03 Online:2010-12-15 Published:2010-12-15

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摘要： 为探讨淋雨对不同干燥期和不同草堆厚度苜蓿(Medicago sativa L.)的影响。采用完全随机设计,对苜蓿分别堆成大小为60 cm(长)×60 cm(宽)、厚度分别为10 cm和20 cm的草堆,其中一组10 cm和20 cm草堆分别模拟90,450,900和1800 mL的淋雨强度;另一组10 cm厚苜蓿当含水量晾晒至50%左右时,也进行相应的淋雨处理。研究表明:与10 cm厚度鲜样淋雨相比,10 cm草堆晾晒后淋雨极显著降低苜蓿干草中的DM和CP含量(P<0.01),提高NDF和ADF含量(P<0.01);随着淋雨强度增加极显著降低DM含量(P<0.01),提高NDF含量(P<0.01),显著提高ADF含量(P<0.05)。20 cm草堆淋雨和10 cm草堆相比,苜蓿干草中的CP和WSC含量极显著增加(P<0.01),NDF和ADF含量极显著降低(P<0.01)。淋雨处理降低了苜蓿干草的品质。

关键词: 苜蓿, 干草, 淋雨, 品质

Abstract: According to random design,alfalfa hay is stacked at 60 cm × 60 cm with 10 cm or 20 cm thick,respectively.Raining effects on different humidity mow of alfalfa hay are studied.First group had simulated 90,450,900,and 1800 mL of rain while the second group was treated similarly after moisture content was air-cured at 50%.Results show that the DM(dry matter) and CP(crude protein) contents decrease significantly in air-cured mows with 10 cm thickness compared with first group for 10 cm thickness,whereas the NDF(neutral detergent fiber) and ADF(acid detergent fiber) contents increase significantly(P<0.01).These effects are enhanced with rain amounts increasing for 10 cm thickness mows.Comparing 20 cm mows with 10 cm ones,both CP and WSC(water soluble carbohydrate) contents increase significantly,whereas both NDF and ADF contents decrease significantly(P<0.01).Alfalfa hay quality declines with rain.

Key words: Alfalfa, Hay, Raining, Quality

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