Fig. 6From: Optimal analysis conditions for sperm motility parameters with a CASA system in a passerine bird, Passer montanusEffect of pH on a sperm velocity and b sperm movement trajectory. Different symbols in each parameter indicate significant differences between pH values (p < 0.05). The gray dots represent samples, and the hollow diamonds represent average values. Abbreviations are the same as those in Fig. 2Back to article page