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红玛丽鱼怎样分公母

更新时间: 2020-10-24 00:00:00     

鉴别方法如下:

1、雄鱼个体瘦小,雌鱼体型粗大。

2、雄鱼具有体外交配授精的生殖器管,雌鱼通常体内含有大量受精卵显得体态膨胀。

3、雄鱼臀鳍呈棒状,较为尖细,雌鱼臀鳍呈扇型。

4、雄鱼尾部修长,雌鱼尾部短小。

关键词: 怎样

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