Development and application of a preference test system to evaluate housing conditions for laboratory rats (1995)

Blom, H. J. M., van Tintelen, G., Baumans, V. et al.

Abstract

Both albino and pigmented rats preferred cages with relatively low light intensities (<100 lx) over those with higher light intensities. The effect was more pronounced in albino rats. These results suggest that light intensities >100 lx are aversive to rats, and may be experienced as unpleasant.