Sodium, Potassium, Calcium, and Chloride Distribution in Bovine Semen

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Abstract
K+ is more concentrated within the sperm cells of bovine semen than in seminal plasma. Na+ and Ca++ are more concentrated in the seminal plasma than within the sperm cells. Varying concentrations of Na+ and K+ in seminal plasma are characteristic of individual bulls and of the ejaculate, when consecutive individual ejaculates are considered. As an average, Na+ and Cl+ concentrations are found to increase, and K+ and Ca++ concentrations to decrease, as increasing consecutive individual ejaculates are analyzed.