本文报道用组织学和组织化学方法观察小鼠睾丸胚胎天时睾丸即已有SDH活性,生后以间质细胞和精母细胞反应最强。4.AlP反应在胚胎时以生殖母细胞较强,生后以界膜反应较强。5.支持细胞、间质细胞AcP活性较强。6.生殖细胞和支持细胞5′-Nase呈阳性,间质反应极微。7.胚胎时,睾丸各种细胞ATPase反应均为阴性。生后界膜、支持细胞和生殖细胞渐出现活性且不断增强。8.胚胎14天睾丸内NSE即有微弱的反应,生后主要以间质细胞反应强烈。至生后的发育。结果表明:1.核糖核酸以代谢旺盛的生殖母细胞最为丰富,支持细胞也较多,精子细胞较少。2.胚胎14天时睾丸各种细胞均有丰富的糖原颗粒,16天起仅分布于间质,性索内糖原阴性。3.胚胎14 This article reports the histological and histochemical methods to observe the testis embryos of mice that have SDH activity, after stromal cells and spermatocytes strongest response. 4.AlP reaction in the embryo when the strong glioblastoma, after the birth of a strong response to the parietal membrane. Support cells, stromal cells AcP activity. 6. Germ cells and supporting cells 5’-Nase was positive, minimal interstitial reaction. 7. Embryos, testicular cells in various ATPase responses were negative. After birth, the membrane, supporting cells and germ cells gradually appear active and growing. Embryonic 14-day testicular NSE that there is a weak response, mainly after the reaction of interstitial cells strongly. To the development after birth. The results showed that: 1. Ribonucleic acid is the most abundant gonadal cell with strong supportive cells and less sperm cells. Embryonic 14 days testis cells are rich in glycogen particles, only distributed in the stroma from 16 days, the sex cord glycogen negative. Embryo 14