Failure of cobalt added to the rations of dairy cows to increase the vitamin B12 potency of the milk.
D000818:Animals; D001940:Breast; D002417:Cattle; D003035:Cobalt; D005260:Female; D008892:Milk; D014805:Vitamin B 12 / Q000032:analysis*
D003035:Cobalt; D014805:Vitamin B 12
COBALT; MILK; VITAMIN B12/determination