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Factors influencing the retention of an oral dose of radioactive manganese by the chick

Published online by Cambridge University Press:  09 March 2007

J. W. Mathers  and
R. Hill
J. W. Mathers
Affiliation:
Royal Veterinary College, University of London
R. Hill
Affiliation:
Royal Veterinary College, University of London
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Abstract

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1. In two experiments, involving 110 chicks up to 5 weeks of age, retention of an oral dose of 54Mn was always low; less than 5%.

2. There were no significant differences in retention by hybrid broiler cocks, hybrid layer cocks, and hybrid layer pullets, nor was retention affected by the period of fasting, i.e. 1 ½ or 24 h, before dosing.

3. Two-weeks-old birds retained 58% more radioactive manganese than 5-week-old birds, and retention in birds killed 24 h after the dose was only 64% of that in birds killed 4 h after the dose.

4. With the addition to a fixed dose of 54Mn of increasing quantities of non-radioactive Mn retention decreased only from 2.52% with no Mn added to 1.02% with 5000 μg Mn added, representing a very large increase in total retention of Mn.

Type
Research Article
Information
British Journal of Nutrition , Volume 21 , Issue 3 , September 1967 , pp. 513 - 517
Copyright
Copyright © The Nutrition Society 1967

References

Hill, R. (1965). Br. J. Nutr. 19, 171.Google Scholar
Hill, R. (1967). Br. J. Nutr. 21, 507.CrossRefGoogle Scholar