Effect of testosterone on penile and urethral development in Black Bengal goat

M R Gofur

doi:10.33109/bjvmjd19rm3

Abstract

Background: Testosterone is important for proper development, growth and functional maintenance of urogenital organs in animals.The objective of this study was to determine the effect of testosterone on penile and urethral development in Black Bengal goats. Methods: Nine male Black Bengal goats (4 months old) were divided into three groups (n=3); Group-A: goats with testosterone deficient (castrated at 4 months of age), Group-B: control and Group-C: goats with excess testosterone (exogenous IM administration of testosterone enanthate; @ 125 mg/goat weekly for a period of 2 months). After getting puberty (8 months of age), goats were slaughtered and penises collected with maximum precaution and hygienic practices, and morphometric examinations performed extensively. Results: The penis of testosterone deficient (castrated) goats was significantlyshorter and narrower in diameter/circumference compared to that ofcontrol goats (with adequate testosterone). Moreover, exogenous testosterone treated non-castrated goats resulted comparatively lager penis that the control goats.The urethral lumen was significantly larger in diameter in goats with adequate testosterone (control and exogenous testosterone-treated) than testosterone deficient goats. Conclusion:The results of this study indicate that the level of testosterone positively affects thenormal development of the penis and urethra in Black Bengal goats.

Highlights

Goat is an important species of animals in respect of Bangladesh because it is considered as the poor man’s cow (Kashem et al, 2011)
Deficiency of testosterone can cause a wide range of signs and symptoms including decreased sex drive, reduced muscle mass and strength, weaker erections of penis, lower body weight, lowered sperm count and excess testosterone increase the risk of prostate cancer (Bassil et al, 2009; Bhasin et al, 2018 ).Testosterone plays a critical role in maintaining erectile function (Efesoy et al, 2018)
The circumference of the penis was similar between control and testosterone-treated goats and there was no significant difference between the groups

Summary

Introduction

Goat is an important species of animals in respect of Bangladesh because it is considered as the poor man’s cow (Kashem et al, 2011). Bangladesh has only one goat breed of its own, known as the Black Bengal (IAEA, 2007). Black Bengal goat is an important animal resource that plays an immense role in the development of livestock sector, to alleviate the poverty from Bangladesh and takes a great part in the increment of GDP of Bangladesh (Rahman et al, 2017).The goats’ revaluation depends on various factors, including the great prevalence of diseases, poor management practices and extensive production systems (Babeker and Elmansoury, 2013). Acute shortage of genetically superior bucks throughout the country is one of the major constraints of goat production in Bangladesh (Husain, 2004). The objective of this study was to determine the effect of testosterone on penile and urethral development in Black Bengal goats

Objectives

Methods

Results

Conclusion