Howell, J M The effect of experimental copper deficiency on growth, reproduction and haemopoiesis in the sheep. [electronic resource] - The Veterinary record Aug 1968 - 226-7 p. digital Publication Type: Letter; Research Support, Non-U.S. Gov't ISSN: 0042-4900 Standard No.: 10.1136/vr.83.9.226 doi Subjects--Topical Terms: AnimalsCopper--deficiencyDietFemaleSheep--physiology