Figure 4

Inhibition of HSP70 activity with YM-1 on sperm motility during liquid storage of pig semen at 17 °C. While the percentage of progressively motile sperm increased on days 4 and 10 of storage (a); no effect on the percentage of total motility was observed (b). Different letters indicate significant differences (P ≤ 0.05) between experimental groups (0, 0.05, 0.1 and 0.2 μM of YM-1) on a given time point (0, 4, 10, 14 and 21 days). Results are expressed as the mean ± SEM (N = 6).