PHYSIOLOGICAL EFFECTS OF STEROID HORMONES SEMEN CHARACTERISTICS OF AWASS1 AND BARK! RAMS

M., Anwar M.

doi:10.21608/jappmu.2006.235406

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Journal of Animal and Poultry Production

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	PHYSIOLOGICAL EFFECTS OF STEROID HORMONES SEMEN CHARACTERISTICS OF AWASS1 AND BARK! RAMS
Article 4, Volume 31, Issue 1, January 2006, Page 131-139 PDF (2.64 MB)
Document Type: Original Article
DOI: 10.21608/jappmu.2006.235406
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Author
anwar M. M.
Production Research institute, Borg El Arab Research Station
Abstract
The aim of this study was to investigate the effects of addition of two steroid namely progesterone and testosterone, to the extender of ram semen on :uality, maintenance and storageability of pelleted rams spermatozoa. The effects :fferent incubation periods, at 37°C were also studied. Two successive semen lates were collected twice weekly for 16 weeks from eight sexually mature rams .arki and 4 Awassi). Results showed that breed of rams have no significant effects on sperm motility, reaction (AR) or percentage of dead spermatozoa. Progesterone had on g significant effects on sperm motihty whether added to the extender at pie-cooling ;ost-thawiflg. Adding testosterone at pie-cooling or postthaWing maintained sperm iity. Acrosomal reaction was affected significantly by adding either progesterone estosterOfle whether at pre-cooling or postthawiflg as compared to cotroI. Percentage r dead spermatozoa significantly increased by addition of progesterone at post-thawing -c testosterone at pie-cooling as compared to control while adding testosterone at post 1”zwing was sjnif1cantly decrease the percentage of dead spermatozoa in ram sperm. Srrn motility decreased significantly by using progesterone or testosterone addition 1t re-cooling or postthaWiflg as incubation at 37°C advanced. Adding testosterone r progesterone at pie-cooling or post-thawing did not drastically affect acrosome reaction. t differences were significant as compared to control. Dead spermatozoa were also cnificanUy increased by the different treatments compared to control.


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