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Variations in Motor Activity and in Food and Water Intake over 24 h Periods in Pigs

Published online by Cambridge University Press:  27 March 2009

D. L. Ingram ,
D. E. Walters  and
K. F. Legge
D. L. Ingram
Affiliation:
A.R.C. Institute of Animal Physiology, Babraham, Cambridge
D. E. Walters
Affiliation:
A.R.C. Statistics Group, Department of Applied Biology, Cambridge
K. F. Legge
Affiliation:
A.R.C. Institute of Animal Physiology, Babraham, Cambridge
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Summary

Groups of weaner pigs, and single animals, were observed in a temperature-controlled room isolated from external noise and light for periods of up to 4 weeks. Continuous records were made of motor activity, food intake and water consumption.

In the presence of a cycle of 12 h light and 12 h dark at 25 °C groups of pigs were most active in the light and took most of their food towards the end of the light period. Single pigs also tended to be more active in the light, but the rhythms were less marked, and one animal was most active during the dark period.

In continuous light, rhythms of activity and ingestion tended to collapse after only a few days, particularly in pigs which were kept by themselves. When the ambient temperature was increased to 35 °C during 12 h light and decreased to 25 °C during 12 h dark, a group of pigs was most active in the dark.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 95 , Issue 2 , October 1980 , pp. 371 - 380
Copyright
Copyright © Cambridge University Press 1980

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