Assistant Laboratory Animal Technician (ALAT) Practice Exam

What problem can occur if rats are housed in wire-bottom cages for extended periods?

1. Weight gain

2. Respiratory issues

3. Foot lesions

4. Behavioral problems

The correct answer is: Foot lesions

Housing rats in wire-bottom cages for extended periods can lead to the development of foot lesions. This is primarily because the wire flooring can cause abrasions and pressure sores on the delicate skin of a rat's feet. Rats, being active animals, spend a substantial amount of time on the ground, so constant contact with a wire surface can create discomfort and injury over time. In addition to foot lesions, the wire-bottom cages might not provide the necessary comfort and support that solid flooring does, potentially leading to higher stress levels and impacting their overall well-being. Proper animal husbandry practices dictate that animals should be housed in environments that minimize pain and stress, which includes providing adequately designed cages that prevent physical injuries to the animal.