Testosterone role during seasons changes in the dogs testes
Other Title(s)
دور الشحمون الذكري أثناء تغير المواسم في خصى الكلاب
Joint Authors
Zayd, Nazih Ways
Ibrahim, Najla Sami
Source
Iraqi Journal of Veterinary Medicine
Issue
Vol. 41, Issue 1 (30 Jun. 2017), pp.125-130, 6 p.
Publisher
University of Baghdad College of Veterinary Medicine
Publication Date
2017-06-30
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Abstract EN
This study was conducted to evaluate the effect of seasons on serum testosterone level, testis histology examination and testosterone receptors by using cytoimmunochemistry techniques.
Samples of blood and both testes were collected from 24 local dogs aged between 2-3 years and weighted 18-22 kg.
This study was carried out at 2015, and divided into four seasons.
No differences in testosterone level were observed between seasons.
However, histological examination were characterized by significant (P<0.01) changes during seasons in tubular diameters, germinal thickness and tubular area.
Cytoimmunochemistry investigation showed differences between seasons also; there was a distribution of testosterone hormone receptors in the Leydig cells, Sertoli cells and in germinal epithelium during spring and autumn.
At the same time the winter season showed a distribution of testosterone hormone receptors in Leydig and Sertoli cells only.
The summer season is characterized by diffuse of receptors in Leydig cells only.
In conclusion there was a significant effect of season on testis of dog in Iraq, the summer season was the lowest in reproductive activity while the spring and autumn season was the highest of reproductive activity of dog in Iraq
American Psychological Association (APA)
Ibrahim, Najla Sami& Zayd, Nazih Ways. 2017. Testosterone role during seasons changes in the dogs testes. Iraqi Journal of Veterinary Medicine،Vol. 41, no. 1, pp.125-130.
https://search.emarefa.net/detail/BIM-882918
Modern Language Association (MLA)
Ibrahim, Najla Sami& Zayd, Nazih Ways. Testosterone role during seasons changes in the dogs testes. Iraqi Journal of Veterinary Medicine Vol. 41, no. 1 (2017), pp.125-130.
https://search.emarefa.net/detail/BIM-882918
American Medical Association (AMA)
Ibrahim, Najla Sami& Zayd, Nazih Ways. Testosterone role during seasons changes in the dogs testes. Iraqi Journal of Veterinary Medicine. 2017. Vol. 41, no. 1, pp.125-130.
https://search.emarefa.net/detail/BIM-882918
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 129-130
Record ID
BIM-882918