Ventilation

• In the middle and late stages of incubation, as the embryo age increases, the oxygen demand increases rapidly, and the pores should be gradually opened to increase the ventilation.
• For ventilation requirements, the carbon dioxide content around the egg should not exceed 0.5%, and the oxygen content should not be less than 20%. Otherwise, embryonic developmental delay, fetal position is not correct, dead embryos or malformed embryos may occur.
• Proper ventilation also has the effect of discharging residual heat and adjusting humidity.