The effect of dividing walls, a tunnel, and restricted feeding on cardiovascular responses to cage change and gavage in rats (Rattus norvegicus).

Cage change and gavage are routine procedures in animal facilities, yet little is known about whether housing modifications change responses to these procedures. Telemetric activity and cardiovascular parameters were assessed in this experiment. BN and F344 male rats were housed in open or individually ventilated cages, each containing 3 rats, 1 of which had a transponder.