My family is located in the eastern suburb of Xuzhou City, Jiangsu Province. It operates a small egg farm, covering an area of more than 600 square meters, more than 200 meters away from the natural village. There are no pollution enterprises around, no noise, flat terrain, ventilated to the sun, superior geographical location, convenient water supply and drainage. There are more than 6,000 eggs in stock and more than 5500 eggs per day. In the process of layer culture, the temperature of the chicken farm has a very important impact on the growth and development of the layer and the performance of laying. If the temperature of the chicken house is too high, it will cause the growth and reproduction of microorganisms, easily lead to the disease of the chicken group, reduce the rate of laying, and seriously lead to the death of the layer. The low temperature of the henhouse, the increase of dust in the henhouse, the disordered feathers of the laying hens, easily lead to respiratory diseases, and then induce a series of complications, which is very harmful to the growth and laying of the laying hens.