Abstract
Conclusions
In the 2 cows studied, 1.5% and 2.5% of the radio-iron administered orally was secreted respectively in the milk during a 78-hour period.
I am deeply indebted to Dr. M. D. Kamen for preparing the radioactive iron solution used and for counting the samples; to Dr. O. W. Schalm, Department of Veterinary Science, for the use of the cows and for the procurement of the blood and milk used; and to Dr. L. H. Duschak, Department of Mining Engineering, for use of high temperature ovens.
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