The histological observation of ductus deferns showed that. spermatozoa developed in summer and was most active in autumn.Sacalia quadriocellata mated and released spermatozoa in the same year.

  • 睾丸组织切片观察,精子发生于夏季,秋季是精子活跃期,在交配的同时将精子释放。
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