Howell, J M Observations on copper and caeruloplasmin levels in the blood of pregnant ewes and lambs. [electronic resource] - Research in veterinary science Mar 1968 - 160-4 p. digital Publication Type: Journal Article ISSN: 0034-5288 Subjects--Topical Terms: AnimalsAnimals, NewbornBlood Specimen Collection--veterinaryCeruloplasmin--bloodCopper--bloodFemalePregnancyPregnancy, AnimalSheep