During the breeding process, we often see breeding failures caused by various reasons, with causes that vary widely. Whether the construction of the chicken coop is reasonable, as well as the adequacy of ventilation, insulation, lighting, and heat insulation, directly impacts the success of breeding. We will list several common phenomena of breeding difficulties and high disease rates in poultry due to unreasonable construction of chicken coops, to raise awareness among breeders and reduce losses caused by these issues.

     1. The chicken farm is located near polluting enterprises, such as power plants and chemical factories, where air pollution and water source contamination are severe, causing the chicken flock to be in a harsh environment for a long time. This increases the incidence of diseases, especially respiratory and gastrointestinal diseases. Therefore, the location of the chicken coop should be far from these pollution sources to ensure the safety of the breeding environment.

     2. Breeding communities and professional breeding villages are no longer suitable for modern breeding. Due to the high incidence of diseases and environmental degradation, what were once thriving breeding communities and professional breeding villages have become bottlenecks that hinder the scaling, industrialization, specialization, and standardization of China's breeding industry. Therefore, when selecting a site for the breeding farm, it is advisable to avoid such areas.

    3. The construction of chicken coops is too rudimentary. Insufficient consideration was given to the requirements for ventilation, insulation, light, and other indicators during construction, leading to difficulty in meeting the hardware requirements for intensive breeding after the coop is put into use, affecting the full production performance. A reasonable chicken coop design can ensure that the chicken flock meets the production temperature requirements in low winter temperatures, while also ensuring proper ventilation to reduce the incidence of respiratory diseases. It can also meet the heat insulation and cooling needs during high summer temperatures, reducing the impact of heat stress on production performance.

     4. The design of the ventilation system in the chicken coop is unreasonable, with improper configuration of fans leading to ventilation dead corners or excessive ventilation. Some chicken coops do not differentiate between air intake and exhaust, not understanding that hot air rises; they fail to install air inlets and skylights, resulting in many dead corners in ventilation. Polluted air, such as ammonia and carbon dioxide, may accumulate excessively in the coop, leading to a high incidence of respiratory diseases in the flock. A reasonable ventilation system needs to consider both longitudinal and transverse ventilation.

     5. Emergency facilities need to be improved, such as generators, as many force majeure events can easily affect the normal production of the chicken farm. Emergency facilities, such as generators and drainage systems, should be equipped during the construction of the farm to prepare for unexpected situations.