Figure 9. Sperm DNA fragmentation (SDF) as percentage of spermatozoa with fragmented DNA (mean±SEM), before and after freeze/thawing when sperm is stored at 17°C either for 3 h or for 24 h.

Different superscripts (a, b, c, d) mean significant differences (P<0.05) among bars, each bar representing different holding times (3 h or 24 h), preservation (Ext vs. FT) and post-thawing times (30 min or 240 min). Ext = Extended semen (15°C). FT = Frozen-thawed semen.