| 不同收获期玉米青贮DM和CP奶牛瘤胃降解率研究 |
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| 引用本文： | 苗树君,杨柳,韩华,曲永利,姜宁.不同收获期玉米青贮DM和CP奶牛瘤胃降解率研究[J].中国草食动物,2005,25(6):11-13. |
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| 作者姓名： | 苗树君 杨柳 韩华 曲永利 姜宁 |
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| 作者单位： | 黑龙江八一农垦大学动物科技学院,大庆,163319 |
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| 基金项目： | 国家“十五”奶业重大专项之子课题“全株蜡熟期玉米青贮高产栽培和收贮技术研究(编号为GZ02B023) |
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| 摘 要： | 结果表明：蜡熟期玉米青贮DM的有效降解率（60.07%）分别比乳熟期（52.91%）和乳熟前期（45.13%）高7.16个百分点（P＜0.05）和14.94个百分点（P＜0.01）;乳熟期玉米青贮DM的有效降解率比乳熟前期高7.78个百分点（P＜0.05）.蜡熟期玉米青贮CP的有效降解率（81.93%）分别比乳熟期（76.43%）和乳熟前期（73.36%）高5.50个百分点（P＜0.05）和8.57个百分点（P＜0.05）;乳熟期玉米青贮CP的有效降解率比乳熟前期高3.07个百分点，但差异不显著.
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| 关 键 词： | 奶牛 玉米青贮 DM瘤胃降解率 CP瘤胃降解率 |
| 文章编号： | 1007-9726(2095)06-0011-03 |
| 修稿时间： | 2005年4月21日 |
The Research of DM and CP Degradability of Corn Silage that harvested at different Periods in the Rumen of Dairy Cattle |
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| Miao Shu-jun,Yang Liu,Han Hua,et al.The Research of DM and CP Degradability of Corn Silage that harvested at different Periods in the Rumen of Dairy Cattle[J].China Herbivores,2005,25(6):11-13. |
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| Authors: | Miao Shu-jun Yang Liu Han Hua |
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| Abstract: | The results showed that the DM effective degradability of dough stage was higher 7.16(P<0.05)and 14.94(P<0.01)percent point respectively than milk stage's and premilk stage corn silage's.The DM effective degradability of milk stage was higher 7.78(P<0.05)percent point than premilk stage's effective degradability.The CP effective degradability of dough stage was higher 5.50(P<0.05)and 8.57(P<0.01)percent point respectively than milk stage's and premilk stage corn silage's,milk stage's degradability was higher 3.07 percent point than premilk stage's degradability,but not significant difference |
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| Keywords: | Dairy Cattle Corn Silage DM degradability in rumen CP degradability in rumen |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
