Go to Top Go to Bottom
Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 1995;8(6): 583-585.
DOI: https://doi.org/10.5713/ajas.1995.583    Published online December 1, 1995.
Level of testosterone in blood plasma of selected rams
S. Abdul Wahid, J. M. Yunus
Following importation of temperate Australian breeds of sheep into Malaysia, it was demonstrated that there was variability in libido and semen productivity. Consequently, a study was conducted to determine the concentration of testosterone and relate it with libido and semen production. A total of 10 rams each of Drset Horn, Cross of Merino with Border Leicester, Siamese Long Tail, Suffolk and local Malin were used to study the composition of testosterone in the blood plasma of these breeds. The study showed that there was significant difference between the testosterone level of different breeds in Spring and Summer but not in Autumn and Winter. The difference was pronounced in August and January. A significant difference(p>0.05) was recorded in the testosterone levels of the different breeds during the day where Malin had better libido compared to the other breeds. There was no significant difference between the testosterone levels of the different breeds at night. The testosterone level of Suffolk, however, was elevated throughout the night(2.00 ng/ml and over) which resulted in better libido at night compared to the other breeds.
Keywords: Testosterone; Blood plasma; Rams
METRICS Graph View
  • 0 Crossref
  •  0 Scopus
  • 2,318 View
  • 20 Download
Related articles

Editorial Office
Asian-Australasian Association of Animal Production Societies(AAAP)
Room 708 Sammo Sporex, 23, Sillim-ro 59-gil, Gwanak-gu, Seoul 08776, Korea   
TEL : +82-2-888-6558    FAX : +82-2-888-6559   
E-mail : animbiosci@gmail.com               

Copyright © 2021 by Animal Bioscience. All rights reserved.

Close layer
prev next