Nirmala Tripathia*, Rittika Pandeyb, Wasim Razac & Harishankar Mahtod*
aUniversity Department of Zoology, S. K. M. University, Dumka, Jharkhand, India
bDepartment of Zoology, Jagjiwan College, V. K. S. University, Ara, Bihar, India
cDepartment of Zoology, Sahibganj College, S. K. M. University, Dumka, Jharkhand, India
dUniversity Department of Life Science, B. B. M. K. University, Dhanbad, Jharkhand, India
Received : 24th June, 2024 ; Revised : 23rd July, 2024
DOI:-https://doi.org/10.5281/zenodo.15015845
Abstract– Testosterone plays a vital role in the development and function of the testes in chickens. This study aimed to investigate the effects of exogenous testosterone on testicular morphology, weight, and histological characteristics in male chickens. A total of 25 white cockerels (weighing 800-1100 grams) were randomly selected and divided into experimental groups. Five birds were used as a baseline control, while the remaining 20 were divided into two main groups: Group A (control) and Group B (testosterone-treated). Group A was further divided into two subgroups (A1 and A2), receiving subcutaneous injections of olive oil for 30 and 90 days, respectively. Similarly, Group B was divided into two subgroups (B1 and B2), receiving testosterone injections (5 ml per bird dissolved in olive oil) for 30 and 90 days, respectively. Histological examination and weight analysis of the tests were conducted post-treatment. Results showed that testosterone administration influenced testicular development, with notable differences in seminiferous tubule structure, spermatogonia arrangement, and vascularity. Birds treated with testosterone for 90 days exhibited enlarged seminiferous tubules and increased cellular density compared to controls. However, prolonged exposure resulted in slight structural deformations in the tunica albuginea. The study also observed a decrease in average testicular weight in testosterone-treated groups compared to the controls, indicating a possible feedback inhibition mechanism. These findings highlight the impact of testosterone on testicular growth and histology in chickens, suggesting potential applications in poultry breeding and reproductive management. However, prolonged testosterone exposure may lead to adverse structural changes. Further research is recommended to explore the long-term physiological and reproductive consequences of testosterone supplementation in poultry.
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