The effect of season (photoperiod and ambient temperature) on semen production, semen quality and libido has been investigated. '''Semen production and quality are higher during the peak of the breeding season''' but in most studies seasonal effects on these parameters are not very marked (Glatzel ''et al'', 1981; Roy ''et al'', 2003, 2004; Tibary ''et al'', 2005). | The effect of season (photoperiod and ambient temperature) on semen production, semen quality and libido has been investigated. '''Semen production and quality are higher during the peak of the breeding season''' but in most studies seasonal effects on these parameters are not very marked (Glatzel ''et al'', 1981; Roy ''et al'', 2003, 2004; Tibary ''et al'', 2005). |