Aluminum foil attached to the bottom of hanging-type rat cages approximately 10 cm from the front of the cage was used for collecting rat urine. Most urine samples were obtained within 1 hour of placing the rat in the cage.
Aluminum foil attached to the bottom of hanging-type rat cages approximately 10 cm from the front of the cage was used for collecting rat urine. Most urine samples were obtained within 1 hour of placing the rat in the cage.