Study the event cycles of Spermatogenesis and Spermogenesis in the Testes of Creeper | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 8, Issue 2, June 2016, Pages 1-7 | ||
| Authors | ||
| Idrees Khalaf Thamer; Firas Abbas Hussein; Hassan Hadi Khorsheed | ||
| Abstract | ||
| Established that the seminiferoustubule is the site where the event cycle of its epithelium which form, the spermatozoa. The knowledge of this event is variable in different species of animals. However, a more detailed study had been made of in thisresearch in order to identify this event cycle of spermatogenesis and spermiogenesis increeper. The histological result of the creeper testes of creeper revealed the presence of a thin capsule which does not give off septa to divide the testes into lobules. The seminiferous epithelium inthe seminiferous tubule hadspermatogenic cells and sertoli cells and the whole was circumscribed by interstitial connective tissue contained leydig cells. The stages in sertoli cells structure were difficult to identify. The event cycle of seminiferous epithelium start with the presence of three type of spermatogonia(A,B,I-spermatogonia) The B_spermatogonia produce primary spermatocyte which showed distinguished phases included ,preleptoten, zygotene, diplotene, leptotene, pachytene and diakinesis phases. The secondary spermatocytes were derived from the primary spermatocytes. and end With the appearance of spermatids spermatogenesis which goes through Complex processes of differentiation include eighteenth stages lead to form the sperms inside the seminiferous tubule. | ||
|
Statistics Article View: 71 PDF Download: 38 |
||