The weather in the south is as high as 40 degrees. How do big chickens hatch chicks under natural conditions? Can a big chicken hatch a chick to stand the weather?

There is no problem at all. The suitable temperature range and incubation temperature of chicken embryo development have certain adaptability to environmental temperature. The temperature is 35 ~ 40.5℃ (95 ~105 f), and it can hatch between these temperatures. At high temperature, the embryo develops rapidly, the incubation period is shortened and the embryo mortality is increased. The quality of chicks decreased. The mortality rate varies with the degree and duration of temperature rise. When the incubation temperature exceeds 42℃, the embryo dies within 2 ~ 3 hours. When the incubation temperature reached 47℃ for 5 days, all embryos died within 2 hours. After 24 hours at 40.6℃ (104f) and 16 days, the hatching rate decreased slightly.

It's 40 degrees, on the edge of dangerous temperature, but your henhouse is not sunburned, is it? They must be in a cool place, where the temperature will be a few degrees lower. In addition, many people think that the incubation of chickens must be a warming process. In fact, this is not entirely correct. It is only the process of heat preservation, and the guaranteed temperature is the temperature of the hen itself. For example, the weather is 40 degrees, but people's temperature can't be 40 degrees. . . So people have a cooling system, in fact, so do chickens. When the temperature is high, the chicken will automatically adjust its body temperature. If the temperature of the egg is higher than the hen's body temperature, then the higher temperature will be transferred to the hen, and the hen will discharge part of the temperature by itself through heat dissipation, and finally ensure that the egg and the chicken are at the same temperature. Of course, if you want to get a good hatching rate, it is also important to create a suitable ambient temperature as much as possible, so as to minimize the burden on the hen and save her physical strength. When the temperature is high, it is necessary to shade the sun, ventilate and properly sprinkle water to cool down in the environment.