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Asian Journal of Poultry Science
  Year: 2016 | Volume: 10 | Issue: 1 | Page No.: 40-51
DOI: 10.3923/ajpsaj.2016.40.51
 
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Testicular Functions and Sexual Behavior in Male Japanese Quail after Exposure to Bisphenol A

A.M. Hanafy , H.A. Khalil, W.M. Abdel-Rahim and A.M. Abdel-Ghany

Abstract:
Recently, with the world progress of industries, several adverse factors such as Endocrine Disrupting Chemicals (EDCs) have appeared. These contaminants have negative devastating effects on the reproductive performance in a large number of domestic and wildlife animal species. Therefore, the objective of this study was to investigate the reproductive and physiological changes due to pre-pubertal exposure of Japanese quail males to Bisphenol A (BPA) as one of EDCs (BPA is a synthetic chemical acts as estrogenic effect). Three weeks old male quails were weekly injected intra-peritoneally (at 3, 4 and 5 weeks old) with BPA at doses of 0, 1, 5, or 10 mg kg–1 b.wt. After 6 weeks exposure of BPA, time of sexual libido, semen characteristics, fertility percent, sexual organs development, histopathology of testes were examined and plasma testosterone concentrations were estimated. The results showed that BPA has adverse and deterioration effects on most of the studied traits. The males received 5 and 10 mg BPA showed significantly delayed time of sexual libido compared with control group. Also, males received 5 mg BPA showed significantly reduced semen volume and cloacal gland area compared with control males. The lowest initial motility and fertility percent (p≤0.05) were detected in 10 mg group while the highest values were obtained in the control group. Males treated with 1 and 10 mg BPA had lower (p = 0.028) foam production than those produced in control males. Plasma concentrations of testosterone were significantly reduced (p<0.000) in all treated groups compared with control group. Histologically, the growth of the testes was negatively affected by exposure to/or over 1 mg kg–1 BPA: Namely, the development of seminiferous tubules and spermatogenesis were severely inhibited compared with control testes. It could be concluded that exposure to estrogenic effects of environmental endocrine disruptors such as BPA before/at puberty lead to malformation of reproductive organs and reduction of reproductive capacity which appears not to regenerate in adult male quail.
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How to cite this article:

A.M. Hanafy, H.A. Khalil, W.M. Abdel-Rahim and A.M. Abdel-Ghany, 2016. Testicular Functions and Sexual Behavior in Male Japanese Quail after Exposure to Bisphenol A. Asian Journal of Poultry Science, 10: 40-51.

DOI: 10.3923/ajpsaj.2016.40.51

URL: https://scialert.net/abstract/?doi=ajpsaj.2016.40.51

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