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 (spər-măt′ə-jĕn′ĭ-sĭs, spûr′mə-tə-)
Formation and development of spermatozoa by meiosis and spermiogenesis.

sper·mat′o·ge·net′ic (-jə-nĕt′ĭk), sper·mat′o·gen′ic (-jĕn′ĭk) adj.
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In contrast, GSI values of testes showed that the mature stages are covered in the season of summer with increase in temperature and also raise the spermatogenetic activity whereas, the primary and secondary spermatocytes and spermatids were filled in the lumen of lobules.
Azoospermia factor (AZF) region on the Y chromosome deletion leads to severe spermatogenetic failure like phenotypic or sperm abnormality (4).
Tdrd5 deficiency in mice leads to spermatogenetic arrest at the round spermatid stage through unregulated retrotransposon silencing (Yabuta et al.
Spermatogenetic failure, including azoospermia and oligospermia, is one of the important causes of male infertility [113].
The exclusion criteria were the following: abnormalities of the uterine cavity, the presence of an uncontrolled thyroid disease, surgically diagnosed endometrioses, submucosal myoma, ovarian cysts discovered on transvaginal ultrasound and the existence of severe spermatogenetic disturbances in the patients' partners that required ICSI technique.
Sohlh1 directly stimulates Kit transcription in postnatal spermatogonia, thus activates the signalling involved in spermatogonia differentiation and spermatogenetic progression(Barrios et al.