Preference of the vertical dimension of cyno pairs living in high cages (2002)

Westlund, K.

Abstract

In a quantitative study I did on pair-housed cynos the animals spent 95% of their waking time in the upper part of the cage (being housed in a system that resembles a double-tier system, but with vertical access to upper and lower sections) - which suggests that their preference along the gradient of height is unequivocal! No bedding was provided on any of the cage floors, and all food was given in the bottom section. Even so, animals would bring the food to the upper part and consume it there.