当前所饲养的优良鸡种的需氧量比过去5～7年所饲养的鸡种增加了3倍。在今后的3～5年中，鸡种的生产性能会进一步提高。
　　氧气需要量也会相应增加。为了提供良好的条件，取得良好的成绩，最重要的就是如何把氧气合理、有效地供给鸡群，这也是提高生产效率的最佳方法。过去换气量的设定是根据饲养密度、体重、换气温度、平均温度、位置等因素来决定的。
　　而现在则侧重于考虑鸡舍内的风速及如何才能更有效的进行换气。现代环境控制鸡舍生产实践中最多的问题就是生产成绩不稳定和死淘率过高。主要原因之一就是与通风换气有关，因此应不断的探索总结有效的通风换气模式。这对促进种鸡生产性能最大发挥十分重要。

The raising of the oxygen demand than in the past JiZhong good 5 ~ 7 years their JiZhong increased three times. In the next three to five years, JiZhong production performance will be further improved.

Oxygen requirements also can increase accordingly. To provide good conditions, achieve good results, the most important is how to get oxygen reasonable and effective supply chicken group, this also is the best way to improve production efficiency. In the past the gas is set according to the breeding density, weight, air temperature, average temperature, factors such as position to decide.

And now are focusing on the consideration in the henhouse wind and how to more efficient ventilation. The modern environmental control in the production practice of the most coop is unstable and death result production rate of tao too high. Was one of the main reasons for and ventilated take a breath, so should constantly about the exploration of the summary of the effective ventilation mode. To promote the chicken production performance maximum play very important.