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animal
>
graze compactness
单位草地面积上,在同一时间内放牧牲畜的头数。是确定轮牧分区面积大小的依据。正常密度时,放牧牲畜移动不拥挤,能充分利用草地,管理方便。密度过大,牲畜拥挤,互相干扰,影响采食。密度过小,牲畜游走时间多,消耗体力大,牧草采食率降低。
放牧密度
因牲畜种类、草地生产力、植被疏密不同而异。羊
放牧密度
比牛马大。生产力高、植被茂密的草地
放牧密度
较大。