Abstract
This study aimed to evaluate seasonal differences in the characteristics of various male reproductive organs and in semen quality. Ten adult males of mountain gazelles (Gazella gazelle) were used in this study during summer and winter. The results showed significant differences in July to September versus October to December for volume (P <= 0.05), motility and viability (P <= 0.01), progressive motility, and morphologic alteration (P <= 0.001). Hence it was concluded that sperm characteristics are strongly influenced by season. This study therefore suggested that the suitable period for semen collection is the breeding season (October to December), which has a good quality for manipulation and long-term preservation of G. gazelle in Saudi Arabia.