Fig. 4From: Freeze-thawing impairs the motility, plasma membrane integrity and mitochondria function of boar spermatozoa through generating excessive ROSFragmented DNA were assayed. Data are presented as the means ± SE (n = 3). * P < 0.05, ** P < 0.01 VS the extension period of control group; # P < 0.05, ## P < 0.01 VS the thawed 30 min or thawed 240 min period of NAC groupBack to article page