ENVIRONMENT (cont)
Mice should never be crowded in cages because crowding stresses animals and causes fighting. The "Guide" recommends for mice a cage height of 5 inches (12.7 cm) and the floor area within a cage as follows;
| Weight (g) | Area (sq in) | Area (sq cm) |
|---|---|---|
| up to 10 | 6 | 38.7 |
| up to 15 | 8 | 51.6 |
| up to 25 | 12 | 77.4 |
| >25 | >15 | >96.7 |
You should refer to the "Guide" for additional recommendations for larger animals and females with litters to meet performance standards.