Key points are not available for this paper at this time.
Abstract Evaluation of the kinematic characteristics of sperm motility can be used to predict the fertility rate of sperm. The age of the bull frequently affects sperm quality. Pasudan bulls are Indonesian indigenous germplasm that require to be conserved and populated through Artificial Insemination (AI). AI efficacy rate is determined by parameters of sperm quality, such as motility. This research explored the kinematic characteristics of sperm motility in the under seven years and above seven years age categories. The freezing process parameters were measured at several stages, including fresh semen characteristics, post-dilution, postequilibration, and post-thawing. Ten heads of Pasundan bulls aged 3-6 years were divided into groups: group A, under seven years old (four bulls), and Group B, more than seven years old (six bulls). Following the established procedure, the obtained sperm was processed into frozen semen in a silicone vaginal. of the Ciamis Regional Artificial Insemination Centre. The parameters obtained were sperm viability, membrane integrity, abnormalities, motility characteristics, and motility kinematics. The data showed there was a significantly difference (p0.05) from that of group A (37.77 ± 4.54%). The data also showed that the motility of frozen sperm in group A (<40%) was significantly lower than in group B. The study concluded that the progressive motility and kinematic characteristics of sperm during equilibration were not significantly different in all age groups; in contrast, Group A’s postdilution and post-thawing quality were significantly higher than Group B’s.
Santoso et al. (Wed,) studied this question.