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Ultrastructural changes in the spermatogenic cells of domestic chicken (Gallus gallus domesticus) observed at different reproductive stages.
Zakariah, Musa; Majama, Yagana B; Gazali, Yagana A; Musa, Esther Z; Reneilwe, Josephine J Dasa; Molele, A; Mahdy, Mohammed A A.
Afiliación
  • Zakariah M; Department of Veterinary Anatomy, College of Veterinary Medicine, Federal University of Agriculture, P. M. B. 28, Zuru, Kebbi, Nigeria; Department of Veterinary Anatomy, Faculty of Veterinary Medicine, P. M. B 1069 University of Maiduguri, Maiduguri, Nigeria. Electronic address: mzakariah@unimaid.ed
  • Majama YB; Department of Veterinary Anatomy, Faculty of Veterinary Medicine, P. M. B 1069 University of Maiduguri, Maiduguri, Nigeria.
  • Gazali YA; Department of Veterinary Anatomy, Faculty of Veterinary Medicine, P. M. B 1069 University of Maiduguri, Maiduguri, Nigeria.
  • Musa EZ; Department of Biological Science, College of Science, Federal University of Agriculture, P.M. B. 28, Zuru, Kebbi, Nigeria.
  • Reneilwe JJD; Department of Biological Science, College of Science, Federal University of Agriculture, P.M. B. 28, Zuru, Kebbi, Nigeria.
  • Molele A; Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa.
  • Mahdy MAA; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt; Department of Anatomy and Histology, Faculty of Veterinary Medicine, King Salman International University, Ras Sudr, Egypt.
Micron ; 187: 103717, 2024 Sep 13.
Article en En | MEDLINE | ID: mdl-39298890
ABSTRACT
Spermatogenesis is a complex process. It is the modification of progenitor spermatogonia into mature spermatozoa. The stages are similar in all-male vertebrates, as well as avian species. However, studies on spermatogenesis in birds are fewer compared to mammals. The current study investigated the ultrastructural changes in the spermatogenic cells of domestic chickens in different reproductive stages. Thirty (30) male birds, ten (10) in each of the three reproductive stages pre-pubertal, pubertal, and adult were used in the study. Testicular tissues from all age groups were processed for transmission electron microscopy (TEM). TEM results showed spermatogonia and primary spermatocytes in the pre-pubertal testis, and the seminiferous tubule lumen was wide and empty. Also, the nuclei of spermatogonia at this stage did not contain condensed chromatin material at the center nor scattered at the periphery of the nuclear membrane. There were slight differences between the spermatogenic cells in the pubertal and adult age groups. The spermatogonia, primary and secondary spermatocytes, and round spermatids with scanty chromatin material were observed in both age groups. In the adult age group, round and elongated spermatids with condensed chromatin materials were observed besides the other spermatogenic cells. Also, the seminiferous tubule lumen was filled with sperm cells and cellular debris, unlike in the pre-pubertal and pubertal age groups where they were wide and empty. The presence of numerous oval mitochondria were observed in all age groups. This signifies the active process of spermatogenesis in pre-pubertal, pubertal, and adult male domestic chickens.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micron Asunto de la revista: DIAGNOSTICO POR IMAGEM Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micron Asunto de la revista: DIAGNOSTICO POR IMAGEM Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido