The relevant hormone determining results show: Prolactin (PRL), estradiol (E2) and progesterone (P) content in serum have regularly changed during reproductive and nonreproductive phase.

• 相关激素测定的结果表明：血清中垂体泌乳素(PRL)、雌二醇(E2)和孕酮(P)含量在生殖期和非生殖期呈现规律性变化。