Poultria is a free, open-access digital platform and scientific decision-support software suite for commercial poultry farming, avian biology, disease diagnostics, and farm management.

Who is Poultria designed for?

Poultria is built for commercial poultry producers, farm managers, avian veterinarians, animal nutritionists, agricultural university students, and backyard poultry keepers.

How can I cite Poultria resources in academic papers?

Use our built-in Academic Citation Generator (available on every page and infographic) to copy formatted APA 7th Edition, Harvard, or BibTeX reference strings.

Interactive Tool & Decision Model

Poultry Heat Stress THI & Wind-Chill Index Calculator

Calculate Temperature-Humidity Index (THI), apparent temperature felt by feathered birds, and required tunnel air velocity cooling offsets.

🔬 Scientific Disclosure & Formula: Temperature-Humidity Index (THI) Formula

              THI = 0.8 * Ambient_Temp_C + [(Relative_Humidity_% / 100) * (Ambient_Temp_C - 14.4)] + 46.4
Wind-Chill Cooling Offset (°C) = 1.8 * (Tunnel_Airspeed_mps)^0.6
Effective Temperature = Ambient_Temp_C - Wind_Chill_Offset
            

High ambient humidity disables evaporative panting. Above 80 THI, broilers enter moderate-to-severe heat distress, requiring convective tunnel airspeed (2.5-3.0 m/s) to remove metabolic heat from the body.

Poultry House Climate & Micro-Environmental Engineering

Maintaining optimal indoor thermal conditions, air exchange rates, and litter dryness prevents respiratory damage and heat-induced mortality. Ventilation must shift smoothly between moisture-removal minimum ventilation and convective cooling tunnel ventilation.

📊 Minimum Ventilation Physics Removing moisture and controlling relative humidity (50-65%) keeps litter dry, preventing footpad dermatitis and keeping toxic ammonia levels below 20 ppm.

📊 Tunnel Wind-Chill Convective Cooling Airspeeds of 2.5 to 3.0 m/s across feathered broilers create a 4°C to 7°C wind-chill cooling effect during high ambient temperature periods.

📊 Brooding Thermal Profiles Day-old chicks cannot self-thermoregulate for the first 5-7 days; maintaining floor temperatures at 32°C (90°F) is essential to prevent chilling and yolk sac retention.

verified Verified Peer-Reviewed Literature & Industry Standards

This computational tool and its underlying physiological equations are calibrated against established global agricultural and veterinary standards:

Agricultural Ventilation Engineering: American Society of Agricultural and Biological Engineers (ASABE EP270.5). Design of Ventilation Systems for Poultry and Livestock Shelters.
Flock Welfare & Environmental Ceilings: European Commission (EU Directive 2007/43/EC). Minimum rules for the protection of chickens kept for meat production.
Commercial Broiler Housing Guidelines: Aviagen (2023). Broiler Environmental Management Guidelines: Housing, Ventilation, and Climate Control.