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Some water and dry-matter relationships in the food and droppings of laying hens

Published online by Cambridge University Press:  27 March 2009

C. Tyler
C. Tyler
Affiliation:
Department of Agricultural Chemistry, The University, Reading
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Extract

1. An experiment with one non-laying and four laying hens was carried out. Food and water consumption was measured hourly from 06.00 to 22.00 hr. and in the same period the exact time of each excretion was noted. Determinations of water and dry matter were made on each separate excretion.

2. Each bird showed a typical pattern of behaviour in relation to the time of day when it ate food and drank water. For any one bird, variations of this pattern from day to day were small.

3. For each bird there was a highly significant relationship between water intake and temperature on the one hand, and water excretion via droppings and eggs on the other. Water intake, however, had a far greater influence than had temperature on water output.

4. Calculations showed that, despite errors caused by not knowing the amount of metabolic water produced, the excretion from the lungs varied greatly from bird to bird on constant intakes of water and also in the same bird at different intakes.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 51 , Issue 2 , October 1958 , pp. 237 - 242
Copyright
Copyright © Cambridge University Press 1958

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References

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