Observations on total food intake and 24 hour food intake patterns during long term registration of food intake behavior in rats

Rietveld, W.J.; Flory, W.; Kooij, M.; Ten Hoor, F.

Zeitschrift fuer Versuchstierkunde 22(3): 156-160

1980


Accession: 006014936

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Abstract
Seasonal fluctuations in feeding behavior of rats are described, showing a decrease in food intake during midsummer (August). This diminution of feeding behavior is mainly caused by a decrease in night time activity. Eating activity patterns are essentially similar during the year. No change in phase angle between eating activity and light dark regimen was found. Suggestions are made to correlate the seasonal changes in food intake with seasonal changes in noradrenaline (norepinephrine) content of the brain.