性成熟期 meaning in English

age of puberty
complete puberty
period of sexual maturity
sexual maturation period

Removal of juvenile : the most desirable small individuals under 40 cm are fished before they are reproductively mature , because they are perfect plate size
人类对身长40厘米，未达到性成熟期的幼鱼的需求量最大，因为它们的体型最能配合碟子的大小。
Northern blot showed that kyot was expressed in testis in all stages of development and the level of kyot mrna began to increase in the adolescence and was the highest in adult
Northern印迹显示kyot在各发育雌小鼠睾丸中均有表达，橄扫描分析其表达水平在青春期迅速升高，在性成熟期最高