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Studies in the absorption and excretion of certain minerals by poultry. II. Changes in the composition of food material as it moves along the alimentary tract of the hen

Published online by Cambridge University Press:  27 March 2009

Cyril Tyler
Cyril Tyler
Affiliation:
The University, Reading
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Extract

1. One laying and one non-laying bird were fed a normal calcium ration, and one laying and one non-laying bird were fed a low calcium ration. Four hours after feeding the birds were killed, and the contents of the various portions of the alimentary tract were analysed and compared with the composition of the original food.

2. The pH of the crop contents is influenced by the pH of the food. The lowest pH value is given by the gizzard contents, but after that there is a gradual rise, until, by the time the 4th segment of the small intestine is reached, the pH. is almost constant at about 6·8 for all birds.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 36 , Issue 4 , October 1946 , pp. 275 - 282
Copyright
Copyright © Cambridge University Press 1946

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References

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