Fig. 2

Customized plexiglass cage. a Shown is the customized plexiglass cage and its various parts, including the gridded floor and the removable ceiling. The gridded floor consists of a drawer that contains the bedding and a side container for food. The gridded floor helps maintaining an even distribution of bedding over the floor. b Shown is a schematic representation of the sliding drawer. The food and bedding are replaced by sliding in a clean drawer as the old one is pushed out. This simple system allows bedding and food changes without disconnecting the rat or removing it from the cage