Ventilation And Temperature Control Systems

In modern poultry farming, cages serve as the home for birds, while ventilation and temperature control systems act as the lungs and thermostat. 

Proper airflow and precise climate regulation are essential for bird welfare, health, and production performance. 

Across layers, broilers, and pullets, tailored environmental control ensures optimal feed conversion, growth, and egg production.

"European Standard Ventilation And Temperature Control Systems"

1. Core Principles: Ventilation And Temperature Control

(1) Ventilation — The "Breathing" Of The House

Ventilation In Our Farm Project

Ventilation in caged systems achieves three key objectives:

• Gas removal: Maintain ammonia below 10 ppm and CO₂ below 3,000 ppm to prevent respiratory stress.

• Temperature and humidity regulation: Keep relative humidity below 75% to prevent wet litter and bacterial growth.

• Oxygen supply: Satisfy metabolic needs of dense flocks efficiently.

Common Ventilation Modes

(2) Temperature Control — The "Thermostat" Of The House

Temperature directly affects growth, feed efficiency, and immunity. 

Heater

Cooling Pad

Specific configurations subject to customer requirements.

Automatic thermostats with ±1°C precision are standard, often using zonal sensors to prevent uneven temperatures in multi-tier setups.

(3) Coordinated Operation Of Ventilation And Temperature

These systems operate together to maintain comfort and efficiency:

Fans

Cooling Pad

Air Inlet Window

Layout data: Operational strategy for reference only.

"Why Choose Ventilation And Temperature Control Systems"

2. Applications Across Poultry House Types

Different poultry types require tailored strategies for ventilation, temperature, and cage design.

(1) Laying Hen Houses

Cage System

Deep Litter System

High-producing layers generate heat and moisture that must be managed for consistent egg production.

• Ventilation: Side or mixed modes in spring/autumn; tunnel in summer with 50–55 exchanges/hour. 

• Temperature: Optimal 22–24°C; brooding chicks 32–35°C. 

(2) Broiler Houses

Broiler Deep Litter System

Fast-growing broilers produce significant metabolic heat requiring high ventilation efficiency.

• Ventilation: Tunnel in summer (2–3.5 m/s), side in winter with 4–8 exchanges/hour.

• Temperature: Brooding 32–35°C, finishing 28–22°C.

Reference only; adjust for flock stage.

(3) Pullet / Small Egg Chicken Houses

Pullet Deep Litter System

Pullets need precise climate control for early development and strong future performance.

• Ventilation: Side or mixed mode, low-speed to prevent drafts; 4–6 exchanges/hour winter, 20–30 summer.

• Temperature: Brooding 32–35°C, gradually reduced; growing 22–28°C.

Layout data: For reference only.

"Tips Of Managing Poultry Farm And Poultry Farm"

3. Farm Application Case — Integrating Ventilation And Temperature Control

Full Data Collection

On Site Data Screen

Practical application on a commercial poultry farm demonstrates how modern systems improve productivity, bird welfare, and operational efficiency.

(1) Farm Profile

• Location: Central poultry farming region

• Houses: 3 × 100 m × 12 m poultry houses

• Capacity: 30,000 layers, 30,000 broilers, 10,000 pullets

(2) Environmental Control Strategy

• Summer: High-speed tunnel ventilation (2.5–3 m/s) quickly removes metabolic heat; cooling pads reduce temperature by 5–7°C within minutes.

• Winter: Side ventilation 4–6 air exchanges/hour with heater output 150,000 kcal/h.

(3) Operational Benefits

• Stable climate: Temperature fluctuations ±1°C, preventing heat or cold stress.

• Improved FCR: Consistent feed conversion ratio across all bird types.

• Health and welfare: Ammonia and CO₂ maintained below thresholds, litter stays dry.

• Management efficiency: Automated monitoring reduces labor and ensures timely adjustments.

Farm application data is for reference only; actual results depend on local conditions and farm management.

4. Cage Design And Environmental Integration

Row spacing, tier height, and feeder/water positioning directly influence airflow and temperature across all poultry types:

(1) Row Spacing

0.8–1.0 m layers/broilers; 0.7–0.9 m pullets.

(2) Tier Height

Outside Poultry House

Taller houses need circulation fans to avoid heat accumulation.

(3) Feed/Water

Prevent obstruction, especially in multi-tier systems.

Proper cage and system integration ensures uniform temperature, stable airflow, and optimal bird performance.