兔场通风换气系统设计：纵向通风与横向通风方案

Ventilation is the most fundamental and important aspect of rabbit house environmental control. A well-designed ventilation system effectively removes waste gases and excess moisture, introduces fresh air, and maintains suitable temperature, humidity, and air quality. Poor ventilation is the main environmental factor causing respiratory diseases in rabbits.

Longitudinal ventilation installs high-power exhaust fans at one end of the rabbit house with air inlets at the opposite end, creating airflow along the long axis. Air velocity is uniform with effective ventilation distance up to 60-80 meters, suitable for large-scale rabbit houses. Combined with cooling pads in summer, the cooling effect is significant.

Cross ventilation installs fans and inlets on side walls, with airflow along the short axis. Ventilation distance is short with low resistance and lower fan power requirements, but air distribution uniformity is somewhat worse. Suitable for houses no wider than 12 meters. Investment cost is about 60-70% of longitudinal ventilation.

Fan selection is based on house volume and ventilation requirements. Maximum summer ventilation is calculated at 4-5 cubic meters per hour per kilogram of body weight; winter minimum ventilation at 1-1.5 cubic meters. Energy-saving variable frequency fans are recommended.

Air inlet design must ensure wind speed is controlled at 2.5-3.5 m/s, avoiding direct airflow onto cages. Guide vanes or perforated inlet windows can disperse airflow. Regularly clean fan blades and protective screens, and check belt tension.