| 青海天然草地牧草能值分析 |
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| 引用本文： | 辛玉春.青海天然草地牧草能值分析[J].青海草业,2013,22(2):39-46. |
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| 作者姓名： | 辛玉春 |
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| 作者单位： | 青海省草原总站,青海西宁,810008 |
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| 基金项目： | 青海省自筹项目:青海省草地资源调查 |
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| 摘 要： | 利用天然草地草群样本进行概略养分分析，对草地的能值、消化能和代谢能密度进行初步评价。认为青海天然草地草群总能值密度为16．99MJ／kgDM-18．25MJ／kgDM；消化能密度（放牧牛时）11431．74kj／kgDM-14684．64kj／kgDM和（放牧羊时）11535．76kj／kgDM～14743．75kj／kgDM；草群代谢能值密度（放牧牛时）9751．55kj／kgDM～12677．26kj／kgDM和（放牧羊时）10043．43kj／kgDM～12880．15kj／kgDM。天然草地草群消化能和代谢能密度基本均衡。
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| 关 键 词： | 青海 天然草地 牧草 能值 |
THE ANALYSIS OF NATURAL GRASSLAND ENERGY IN QINGHAI |
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| XIN Yu-chun.THE ANALYSIS OF NATURAL GRASSLAND ENERGY IN QINGHAI[J].Qinghai Prataculture,2013,22(2):39-46. |
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| Authors: | XIN Yu-chun |
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| Institution: | XIN Yu-chun;Qinghai Grassland Station; |
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| Abstract: | In this study, the energy, digestibility and digestible energy, and metabolizable energy density, are assessed by nutrition analysis of natural grassland samples. The assessment result shows that the total energy density of natural grassland group is relatively high （16.99MJ/kg DM -18.25MJ/kg DM） ; and its digestible energy densities is 11431.74kj/kg DM - 14684.64kj/kg DM （ cow grazing） or is 11535.76kj/kgDM - 14743.75kj/kgDM （ sheep grazing） ;its metabolizable energy density is 9751.55kj/kgDM - 12677.26kj/kgDM （ cow grazing） or is 10043.43kj/kgDM - 12880.15kj/kgDM （sheep grazing）. This result also indicates that the digestible energy and the metabolizableener~~ density are in eaualization_ |
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| Keywords: | Qinghai Natural Grassland Grass Energy |
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