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怎样辨别鳖的雌雄

更新时间: 2020-10-05 00:00:00     

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雄性甲鱼鼻吻短小,裙边肥大,头部甲鱼盖圆弧不明显,与脖子相连,没有项窝;雌性甲鱼鼻吻尖长,甲鱼盖弧线分明,特别是项窝分明,脖子细长;雄性甲鱼身体较长, 底板是凹的,尾巴长;雌性甲鱼身体较圆形,底板是平的,尾巴短;雄性甲鱼背甲较长且窄,腹甲中央略微向内陷,尾粗且长,尾基部粗,泄殖孔距腹甲后缘较远,腹甲的2块肛盾形成的缺刻较深,缺刻角度较小;雌性甲鱼背甲较短且宽,腹甲平坦中央无凹陷,尾细且短,尾基部细,泄殖孔距腹甲后缘较近,腹甲的2块肛盾形成的缺刻较浅,缺刻角度较大。

关键词: 怎样 辨别 雌雄

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