Changes with age in the absorption of radiocaesium by sheep

Mayes, R.W.; Eayres, H.F.; Beresford, N.A.; Lamb, C.S.; Howard, B.J.. 1992 Changes with age in the absorption of radiocaesium by sheep. Radiation Protection Dosimetry, 41 (2/4). 83-86.

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Official URL: http://rpd.oxfordjournals.org/content/41/2-4/83.ab...

Abstract/Summary

The absorption of ionic 137Cs was determined in groups of lambs ranging in age from 11 to 59 weeks fed ewes' milk or fresh perennial ryegrass. Absorption was measured as either the apparent (Aa) or true absorption coefficient (At). Whereas Aa declined with age, At appeared not to change with age but was higher (1.00) when the 137Cs was incorporated in milk, than when administered in a way which simulates incorporation into solid feed (0.80-0.85). Previously observed differences in transfer coefficients for animals of different ages appear not to be due to changes in transfer across the gut.

Item Type:	Publication - Article
Programmes:	CEH Programmes pre-2009 publications > Other
UKCEH and CEH Sections/Science Areas:	_ Pre-2000 sections
ISSN:	0144-8420
Additional Keywords:	radioecology
NORA Subject Terms:	Ecology and Environment
Date made live:	13 Jun 2012 09:05 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/17830

Item Type:

Publication - Article

Programmes:

CEH Programmes pre-2009 publications > Other

UKCEH and CEH Sections/Science Areas:

_ Pre-2000 sections

ISSN:

0144-8420

Additional Keywords:

radioecology

NORA Subject Terms:

Ecology and Environment