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Percentage of motile sperm swimming in dominant pro- and anti-hook beating patterns after each treatment. Data are from three males and are presented as the mean ± SEM. For all treatments, an asterisk (*) indicates a significant difference (P < 0.01) between the percentage of dominant pro-hook and anti-hook patterns for each treatment. Cap, capacitated sperm; Pro, 5 mM procaine; 4-AP, 4 mM 4-AP; Thi, 100 μM thimerosal; Con, control sperm.
