Variations of motility and survival with storage time at 4 degrees C of epididymal spermatozoa Ouled-Djellal breed rams in Eastern Algeria

Aim: The aim of this study was to evaluate some reproduction performances in Ouled-Djellal rams. Materials and Methods: This study involved genital organs removed after slaughter from 54 rams at the municipal slaughterhouse of Batna (East Algeria). Results: The measurements of survival and mobility of epididymal sperm followed at 0, 24, 48 and 72 h after collection, revealed significant (p<0.05) to highly significant differences (p>0.001) according to time. Thus, concerning the sperm motility the values were 91.00 +/- 2.40%, 89.20 +/- 2.40%, 77.00 +/- 6.20% and 62.60 +/- 1.20% at 0, 24, 48 and 72 h, respectively. Indeed, in live sperm, the viability rates were 82.15 +/- 1.48%, 77.67 +/- 1.74%, 66.56 +/- 1.95% and 52.30 +/- 1.46% at 0, 24, 48 and 72 h, respectively. Conclusion: This study revealed that epididymal spermatozoa stored at 04 degrees C for 72 h kept their mobility and vitality at nearly a half of their the original parameters.