Oxytocic acitivity in unextracted blood plasma during calving.
D000818:Animals; D001769:Blood; D002417:Cattle; D005260:Female; D007743:Labor, Obstetric / Q000502:physiology*; D010121:Oxytocin; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000502:physiology*
D010121:Oxytocin