Booles, D Effects of two levels of zinc intake on growth and trace element status in Labrador puppies. [electronic resource] - The Journal of nutrition 11 1991 - S79-80 p. digital Publication Type: Journal Article ISSN: 0022-3166 Standard No.: 10.1093/jn/121.suppl_11.S79 doi Subjects--Topical Terms: AnimalsCalcium--bloodCopper--bloodDogs--bloodIron--bloodMetallothionein--bloodTrace Elements--bloodZinc--administration & dosage