title: Effects of cooling and freezing on pH of semen extender.
mesh_terms: D002021:Buffers; D003451:Cryoprotective Agents / Q000494:pharmacology; D004338:Drug Combinations; D004530:Egg Yolk; D005260:Female; D005615:Freezing; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D012662:Semen Preservation; D014325:Tromethamine / Q000031:analogs & derivatives
chemical_list: D002021:Buffers; D003451:Cryoprotective Agents; D004338:Drug Combinations; D014325:Tromethamine; C027806:TEST mixture