Microbiological versus biological vitamin B12 activity in bovine rumen liquor and feces.
D000653:Amniotic Fluid; D000818:Animals; D002417:Cattle / Q000502:physiology; D004063:Digestion; D005243:Feces; D012417:Rumen; D013270:Stomach / Q000502:physiology*; D014805:Vitamin B 12 / Q000032:analysis*
D014805:Vitamin B 12
CATTLE/physiology; FECES; STOMACH/physiology; VITAMIN B12/determination