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牛反刍嚼多少次正常

更新时间: 2020-11-01 00:00:00     

普通牛1个草团在口腔中平均咀嚼48次,肉牛为30~60次。采食粗硬的秸秆、冬季枯黄的牧草多,咀嚼次数也相应增加。反刍可以排出消化过程中瘤胃产生的气体。

反刍可使瘤胃内容物磨碎,促使60~70%纤维素得到发酵分解。经反刍咽下的食物,在网胃中停留25~30秒,反刍后10~15分钟食物进入皱胃及肠道。

关键词: 反刍 多少 正常

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