Conventional poultry houses often struggle with heat stress during summer, leading to reduced feed intake and higher mortality. Tunnel ventilation retrofitting offers a proven solution.

The technical pathway involves installing high-capacity fans at one end, evaporative cooling pads at the opposite end, and sealing side inlets to create uniform 2–3 m/s airflow. This system lowers bird body temperature through convective cooling.

Economically, while initial investment ranges from $8,000–$12,000 per 10,000-bird house, benefits include 15–20% lower mortality during peak summer, improved feed conversion by 0.05–0.08, and 30% reduced labor for manual cooling interventions. Payback periods typically range from 18 to 24 months.

For farms in hot climates, tunnel ventilation retrofitting represents a strategic investment that transforms summer production losses into consistent year-round performance.

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