1. Temperature range and optimal temperature
Embryo development will be inhibited when the temperature is lower than a certain temperature during incubation, and the embryo will start to develop only when the temperature is higher than a certain temperature. This temperature is called “physiological zero”, also called clinically
Temperature, it is generally believed that the physiological zero of chicken is about 23.9℃; meanwhile, embryonic hair.
Breeding has a certain ability to adapt to environmental temperature. Take chickens as an example, the temperature is between “35 to
Between 40. 5℃”, there will be some eggs hatching chicks. At “35-40. 5℃”
There is an optimal temperature in this temperature range, and the ambient temperature should be kept at 24 to 26°C, the best temperature is 37.8°C for 1 to 19 days, and the hatching period is 19 to 21 days are 36.9 to 37.2°C.

2. Ambient temperature
Ambient temperature has a certain influence on incubation, and the level of ambient temperature mainly affects
It affects the accuracy of temperature control in the incubation. In production, it is generally based on different regions,
Flexible in different seasons. Constant temperature incubation and variable temperature incubation are two incubation methods that are often used according to the environmental temperature. Both constant temperature incubation and variable temperature incubation can achieve better results if they are operated properly. Constant temperature incubation is from 1 to
Maintain a temperature for 19 days, such as 37.8 ℃; and maintain at a temperature from 19 to 21 days 37. 2℃, constant temperature incubation requires higher environmental conditions for incubation, the environmental temperature. It should be kept between 22 to 26°C and well ventilated.
Variable temperature incubation is based on the type of incubator, the temperature of the incubator, and the day of embryo development.
Age gives different temperatures. If the ambient temperature is lower than 20℃, the incubation temperature
It can be 0.5 to 0.7℃ higher than the optimum temperature; if the ambient temperature is higher than 30℃, You can lower the incubation temperature from 0.2 to 0.6°C.