鄂尔多斯高原沙质灌木草地绒山羊生产的优化模式研究——达拉特旗试验区绒山羊生产系统的优化

Study on the Optimal Models for Goat Production in the Ordos Plateau's Sandy and Shrub Grassland. ----One Optimal Model for Goat Production in Dalate Experimental Area.

依据鄂尔多斯高原沙地草场牧草生长规律和白绒山羊的生物学特性，结合该地区家畜补饲、人工草地建立和沙地草场改良等草地畜牧业综合配套技术的研究，通过计算机模拟实验，确定了达拉特旗试验区绒山羊系统的优化生产模式。优化模式实施后，系统的年第一性生产力可达１６７．６１ｇＤＭ／ｍ２，系统的全年载畜量为３０４．０７个绵羊单位；系统的年第二性生产力水平按单位面积畜产品数量来计，绒、肉产量分别为０．５４３ｋｇ／ｈｍ２和６．３５１ｋｇ／ｈｍ２；系统年毛利为２８８６５．８５元。

In view of the biological properties of herbage and goat in the sandy grassland of Ordos Plateau and the result of simulant calculation. An optimal production model in Dalate Experimental Area was posed, which was combined with the establishment of artificial pastures, the improvement of natural grassland and supplemental feeding system of livestock. If being implemented, the model could make the primary productivity at 167.61g DM/m 2, the second productivity at 0.543kg Mohair/hm 2 and 6.351kg Mutton/hm 2 and the gross profit at 28865.85$ per year in Dalate Experimental Area.