title: [Addition of methyltestosterone to bull semen. 1. Effect on metabolism of spermatozoa].
abstract: Added to bull semen preserved by deep freezing, methyltestosterone at a concentration of greater than or equal to 1 mg per ml diluted semen reduced the respiratory rate, glycolysis, lactate index of spermatozoa and the rate of radiosodium exchange through the spermatozoal membrane. The mode of action is discussed.
mesh_terms: D000818:Animals; D002417:Cattle; D002463:Cell Membrane Permeability / Q000187:drug effects; D005615:Freezing; D006019:Glycolysis / Q000187:drug effects; D006207:Half-Life; D007773:Lactates / Q000032:analysis; D008297:Male; D008777:Methyltestosterone / Q000494:pharmacology*; D010101:Oxygen Consumption / Q000187:drug effects; D011868:Radioisotopes; D012964:Sodium / Q000378:metabolism; D013094:Spermatozoa / Q000187:drug effects* / Q000378:metabolism
chemical_list: D007773:Lactates; D011868:Radioisotopes; D012964:Sodium; D008777:Methyltestosterone
vernacular_title: Ausatz von Methyltestosteron zum Sperma des Bullen. I. Mitteilung: Beeinglussung des Stoffwechsels der Spermien