Abstract
Ejaculate specific conductivity σ (S.m – 1) was measured for 10 breeding stallions. The set of measurings was performed three times for native ejaculate and three times for ejaculate stored for 24 hours at 4 °C. The average value of specific conductivity of native ejaculate was found to be 1.22 ± 0.11 S.m – 1, the same quantity for stored ejaculate was calculated to be 1.11 ± 0.11 S.m – 1. The values of coefficients of variation have been calculated for several quantities, and qualitative (ejaculate volume, sperm concentration, and sperm motility) and quantitative parameters have been compared by way of phenotype coefficients of correlation. Two dependencies, namely specific conductivity vs. sperm concentration (rp = – 0.79; P < 0.99) and specific conductivity vs. motility (rp = – 0.78; P < 0.99), have been evaluated as relevant and enabling supplementary description of stallion ejaculate quality by means of other (physical) quantity.
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