Oestrus cycle arises after sexual maturation in female mammal. It is regulated by the internal factors such as endocrine and nervous system and affected by outer enviroment such as season.

  • 雌性哺乳动物性成熟后出现发情周期,发情周期受内分泌和神经系统等内部因素调节,同时受季节的外环境影响。

  • 互联网摘选 2025-03-03 15:53:24

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