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Distribution of protein tyrosine phosphorylation in bull spermatozoa showing spermatozoa with intact (I) or compromised (C) plasma membrane. Spermatozoa were analyzed after a treatment with or without ionophore A23187 at time 0 (T0) or after 3 h (T3) of incubation under capacitating conditions. Values of each pattern are represented as means (%) ± SD, n = 6.
