在草地畜牧业生产体系中,牧草是构成家畜有机体的能量和蛋白质的物质基础。分析研究牧草的营养化学、营养类型的组合特点、动态规律与放牧家畜营养变化之间供、需关系是正确的确定草场的理论载畜量,牧草的合理利用时期以及畜牧业区划的理论依据。早在1860年德国的汉尼伯格(Henneberg)和司徒门(Stohman)发明了《概略养分》(水分、粗蛋白、粗脂肪、粗纤维,灰分)的分析方法以后,人们注意到了牧草 In grassland livestock production systems, pasture is the material basis for the energy and protein that make up livestock organisms. The analysis of the combination of nutrition chemistry and nutrition type of forage, the relationship between the dynamic laws and the nutrition changes of grazing livestock is the correct theoretical basis for determining the theoretical carrying capacity of forage grass, the reasonable utilization period of pasture and the division of livestock husbandry. As early as 1860 when the method of analysis of “Rough Nutrients” (water, crude protein, crude fat, crude fiber, ash) was invented by Henneberg and Stohman in Germany,