Fig. 2.

Effect on ram sperm motility induced by three centrifugal forces. a TM, total motility (%); b PM, progressive motility (%); c RAP PM, rapid progressive motility (%); d MED PM, medium progressive motility (%). The same 11 males were analyzed in each experimental group (600×g, 3000×g, and 6000×g for 10 min at room temperature) at 0 h and 2 h post-incubation at 37 °C. Graph dots represent individual male ejaculates. Different lowercase superscripts letters (a, b, c) indicate significant differences (P ≤ 0.05) for each assessment point among the centrifugal forces