The development of a novel form of mouse cage enrichment (2000)

Leach, M. C., Ambrose, N., Bowell, V. J. et al.

Abstract

We incorporated a number of existing enrichments into a one-piece insert which covers the entire cage base and comprises two raised platforms and an in-build shelter. This design of combining a shelter and [high and low] platforms into one insert has the advantage of not reducing the available floor space for the inhabitants, a common problem associated with several different enrichments into a cage simultaneously. ... The insert has achieved a number of the laboratory enrichment goals. It produced an increase in the frequency and diversity of positive natural behavior by promoting a higher frequency of exploration. ... The insert produced a decrease in the occurrence of abnormal behavior by promoting a lower frequency of bar gnawing. The animals preferred the high platform and avoided the low platform.