Autoradiographic Studies on Distribution of Radiocobalt Chloride in Pregnant Mice

Cobalt is present in small amounts in all animal material.As yet, no essential physiological function of cobalt is known, except its presence in the vitamin B n molecule.Deficiency symptoms are not known in other animals than sheep and cattle, which need cobalt for their microbiologic synthesis of vitamin B12.In large doses, cobalt acts upon blood-forming organs, causing the formation of renal erythropoietin (FISHER et coll.1962) and producing polycythemia ( WALTNER