title: Evaluation by the heterospermic insemination technique of the differential effect of freezing at--196 degrees C on fertility of individual bull semen.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D005298:Fertility; D005615:Freezing; D007315:Insemination, Artificial / Q000379:methods; D008297:Male; D012661:Semen / Q000502:physiology*; D013997:Time Factors