Fig. 5
Comparison of epididymal sperm trajectories in capacitating conditions using different HCO3− concentrations. Boar epididymal spermatozoa were incubated in capacitating medium (TALP) containing different concentrations of HCO3− (0 mmol/L, 5 mmol/L, 15 mmol/L and 25 mmol/L) for 60 min. Sequences of 2 s were obtained by CASA (50 frames/s)