What is the primary purpose of using cleanable surfaces in mouse enclosures?

• A. To facilitate efficient cleaning and reduce contamination.
• B. To increase manufacturing capacity.
• C. To reduce the need for ventilation.
• D. To decrease the weight of the enclosure.

Answer: (A)

Cleanable surfaces in mouse enclosures are designed to make sanitation efficient and reduce contamination. Smooth, non-porous materials and easily accessible seams allow dirt, urine, and feces to be wiped away and disinfected thoroughly between uses. When surfaces can be cleaned effectively, the bioburden is lowered, cross-contamination between cages is minimized, and experimental conditions remain more consistent. This improves both animal welfare and the reliability of data. It's not about manufacturing capacity, ventilation needs, or enclosure weight.