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Observations on the vitamin metabolism of the common fowl IV. Free and combined riboflavin in the magnum and liver of the laying hen fed a diet high in riboflavin

Published online by Cambridge University Press:  27 March 2009

W. Bolton
W. Bolton
Affiliation:
A.R.C. Poultry Research Centre, West Mains Road, Edinburgh
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Extract

1. The partition of riboflavin into free vitamin, flavinmononucleotide and flavin-adenine-dinucleotide in the livers and magnums of laying hens fed a diet rich in riboflavin has been determined.

2. Free riboflavin in the liver amounted to 4·3% of the total vitamin, and it is concluded that this tissue does not play any part in the day-to-day metabolism of riboflavin secretion in the albumen.

3. The average amount of free riboflavin in the magnum is 45% of the total vitamin. As an egg passes through the organ, the amount decreases; this decrease is equal to the amount secreted in the albumen of the egg.

4. It is suggested that riboflavin accumulates in the blood while an egg is in the magnum, and in the magnum in the intervals between the passage of eggs, and that the riboflavin in the albumen is secreted at the same time as the albumen.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 43 , Issue 1 , January 1953 , pp. 120 - 122
Copyright
Copyright © Cambridge University Press 1953

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References

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