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鹅为何不吃鱼
更新时间: 2020-07-15 00:00:00  

鹅不吃鱼的原因如下:

1、生活习惯:鹅的祖先是大雁,在草地上生活的时间长于水中,所以长期生活在陆地的鹅,以草为主食,不喜食鱼;

2、生理结构:因为长期吃草,鹅的肠胃适合消化植物纤维,不适合消化鱼肉;

3、外形条件:鹅的大腿短,活动起来较笨拙,不容易能抓到鱼;

4、生活环境:鹅被人类圈养后,多以饲料进行饲养,饲料多以草为主,所以长时间之后,鹅便不会再吃鱼。

关键词: 何不

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