New Canadian guidelines say rat cages should be high enough to allow them to stand upright
CCAC guidelines are intended to provide assistance in the implementation of Russell and Burch’s Three Rs (Replacement, Reduction and Refinement) principles for animals in science (Russell and Burch, 1959). The guidelines are based on expert peer advice and current interpretation of scientific evidence. They are intended to provide a framework for the implementation of evidence-based practices, which are constantly evolving. Implementation of evidence-based practices should result in continual improvement in animal welfare, and those involved with rats should keep abreast of the current literature.