title: Effect of calcium on bull spermatozoan membrane potential.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D002417:Cattle; D008297:Male; D008564:Membrane Potentials; D013094:Spermatozoa / Q000187:drug effects / Q000502:physiology*
chemical_list: D002118:Calcium