- Seasonal changes in sexual activity and semen quality in the Angora ram
|Last update: March 30, 2012 10:21:57 AM|
Seasonal changes in sexual activity and semen quality in the Angora ram.
1. Libido and male hormone concentrations
P.G. Loubser, C.H. van Niekerk and L.J.J. Botha
Department of Human and Animal Physiology, University of Stellenbosch
The seasonal changes in libido and peripheral venous plasma concentrations of testosterone and luteinizing hormone of the Angora ram were investigated. A definite breeding season from March to the end of July was determined. Libido, as well as the levels of testosterone and luteinizing hormone followed a seasonal pattern with a change in photoperiod being the main stimulus for the seasonal sexual variations.
S. Afr. J. Anim. Sci. 1983, 13: 131 - 133
South African journal Animal Science 13 (2)