title: [Study of ultrastructure of mitochondrial sheath of middle piece of bull spermatozoa, before and after freezing].
mesh_terms: D000818:Animals; D002417:Cattle; D002462:Cell Membrane; D008297:Male; D008854:Microscopy, Electron; D008928:Mitochondria; D012034:Refrigeration; D013094:Spermatozoa / Q000166:cytology*
vernacular_title: Etude de l'ultrastructure de la gaine mitochondriale de la pièce intermédiaire du spermatozo-ide de taureau, avant et après congélation.