Publication: Enhancement of sperm transport through the rat epididymis after castration
Issued Date
1985-01-01
Resource Type
ISSN
00224251
Other identifier(s)
2-s2.0-0022358415
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Reproduction and Fertility. Vol.74, No.2 (1985), 497-502
Suggested Citation
S. Sujarit, C. Pholpramool Enhancement of sperm transport through the rat epididymis after castration. Journal of Reproduction and Fertility. Vol.74, No.2 (1985), 497-502. doi:10.1530/jrf.0.0740497 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/30748
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Enhancement of sperm transport through the rat epididymis after castration
Author(s)
Other Contributor(s)
Abstract
Transport of spermatozoa through different regions of the epididymis has been followed by labelling testicular spermatozoa with [3H]thymidine in intact rats and in rats in which the efferent ducts were ligated or the testes were removed. In intact rats, the transit times of epididymal spermatozoa from the initial segment to the caput, from the caput to the corpus, and from the corpus to the cauda were 2, 4 and 2 days, respectively, giving a total transit time of 8 days. After bilateral castration, labelled spermatozoa were transferred from the initial segment into the proximal cauda by 2 days and appeared in the ductus deferens by 4 days. This effect was prevented by a daily subcutaneous injection of testosterone propionate (0.2 mg/kg). Bilateral efferent duct ligation had only a slight effect on the passage of epididymal spermatozoa. The results indicate that epididymal sperm transport is enhanced after androgen withdrawal.