Chicken house "gas environment" solution
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July 20 14:00:51, 2025
In intensive chicken farming, harmful gases such as ammonia, carbon monoxide, hydrogen sulfide, and carbon dioxide are continuously produced inside the poultry house. This is especially true during winter when ventilation is reduced for warmth. As a result, these gases accumulate, leading to respiratory issues and other health problems in chickens. In severe cases, it can even cause mass mortality. Therefore, implementing effective technical measures to control these harmful gases is crucial for maintaining healthy and productive flocks.
When designing a chicken coop, it's important to choose a location that is elevated, well-drained, and has good airflow. Avoid low-lying or damp areas, as they can lead to poor hygiene and increased gas buildup. The floor should be made of concrete to make cleaning and disinfection easier. Additionally, incorporating more greenery around the area helps improve the microclimate and reduce airborne pollutants.
Maintaining cleanliness and dryness is essential. Keep the surroundings of the chicken house free from sewage, feces, and other waste materials. Do not discard dead chickens in the vicinity, as this can attract pests and increase disease risk. Inside the house, ensure regular removal of manure and organic matter to prevent ammonia buildup. If using litter, keep it dry and replace any wet portions promptly to avoid odor and gas production.
Proper ventilation is key, especially during colder months. While insulation is necessary, it should not come at the expense of air circulation. When using coal for heating, avoid keeping doors and windows closed for long periods. Make sure the heating system has an exhaust pipe that leads outside and check it regularly for blockages. During formaldehyde fumigation, strictly control the dosage and duration, and ventilate the area thoroughly afterward to minimize irritation before reintroducing the birds.
Controlling the stocking density is also vital. Overcrowding increases stress and gas production. For example, during the first two weeks, 25 chickens per square meter is appropriate. From three to four weeks, reduce to 12 per square meter, and so on, adjusting based on age and space availability. In caged systems, avoid overcrowding to ensure comfort and better air quality.
Optimizing the diet is another important factor. Provide a balanced feed that meets the nutritional needs of the chickens. Avoid excessive protein levels, as this can lead to excess nitrogen excretion and increased ammonia production. Adjust feed amounts according to the flock’s condition to prevent mold growth in feed troughs.
Finally, adding probiotics or biological agents to the feed can improve protein utilization, reduce the conversion of proteins into ammonia, and lower nitrogen excretion. This not only improves indoor air quality but also enhances feed efficiency and reduces overall costs. By combining these practices, farmers can significantly improve the living conditions and health of their chickens.