The analytic method of gray incidence degree in gray system was employed to study the relationship between daily gain of grazing sheep and restrictive factors.
采用灰色系统中灰色关联度的分析方法对羊草草原放牧绵羊日增重的气象限制性因素进行了研究。
Selective grazing of the native cattle and sheep in Inner Mongolia under the continuous grazing system during May and December 19% and 1997 was studied.
1997年间，作者对自由放牧条件下放牧于沙地草地的蒙古牛和蒙古羊的选择性采食进行了观察研究。
In this paper, the grey system analysis were used to study the nutritional limitations affecting the productive performance of the grazing sheep.
本文应用灰色系统理论中的灰色关联度分析法，对影响放牧绵羊生产性能的主要营养限制因素进行了研究。
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