Tiered cages utilize drop pans to accumulate manure and urine. Pans are available in galvanized metal or plastic. Ventilation Poor ventilation is one of the most common causes of disease in the rabbitry. If you smell ammonia or see condensation on walls and windows of the rabbit house, you have a problem. The purpose of ventilation is to remove heat during the summer and moisture during the winter.
Rabbits require excellent ventilation to be productive and stay healthy.
There needs to be a good circulation of fresh air throughout the rabbitry. Strong drafts should be avoided. Natural ventilation is more economical. In some areas, an open sided building with role-up curtains works well. With natural ventilation, only one tier of cages is recommended and a narrow building is preferred to a wide one.