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Absorption, distribution and milk secretion of radionuclides by the dairy cow. II. Radiorubidium

, : Absorption, distribution and milk secretion of radionuclides by the dairy cow. II. Radiorubidium. Health Physics 24(4): 417-427

4 lactating Holstein-Friesian cows received a single oral dose of 1.9 mCi 86RbCl, and all milk, faeces and urine from the cows were collected for the next 4 days. 18 h after ingestion of the radionuclide, a max. concn. of 0.16% of the dose/l. appeared in milk. The activity was eliminated by the cows via milk in 2 stages with biological half-lives of 13 and 84 h. After 66 h, 50% of the 86Rb had been excreted, 8% being via the milk.


PMID: 4698184

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