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Mineral Balance Studies on Poultry

Published online by Cambridge University Press:  27 March 2009

Robert Haddon Common
Affiliation:
(Chemical and Animal Nutrition Division of the Ministry of Agriculture for Northern Ireland, and the Queen's University of Belfast.)

Extract

1. From the results of calcium and phosphorus balances on laying pullets, it is shown that the pullets displayed a diminution of the calcium and phosphorus in their droppings over a period of about 2–3 weeks before laying, and a correspondingly increasing retention of these elements.

2. Egg laying was correlated with a relatively heavy voiding of phosphorus in the droppings, involving a temporary negative phosphorus balance. This confirms and amplifies the results of other workers on this subject. The nature and meaning of the phenomenon are discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1932

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References

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