title: Freezability of bovine spermatozoa in Tris-buffered yolk extenders containing different levels of Tris, sodium, potassium and calcium ions.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D002417:Cattle; D004530:Egg Yolk; D005260:Female; D005615:Freezing; D008297:Male; D009995:Osmosis; D011188:Potassium / Q000494:pharmacology*; D012964:Sodium / Q000494:pharmacology*; D013094:Spermatozoa / Q000187:drug effects*; D014325:Tromethamine / Q000494:pharmacology*
chemical_list: D014325:Tromethamine; D012964:Sodium; D011188:Potassium; D002118:Calcium