Ventilation is very important during the incubation process. While the embryo is developing, oxygen enters the egg through the shell and carbon dioxide escapes in the same manner. As the chicks hatch, they require an increased supply of fresh oxygen.

How important is ventilation in incubator?

Machines need to ventilate to allow enough oxygen to come in and to allow the produced carbon dioxide and evaporated water to escape. Besides that, often machines also depend partly for their cooling capacity on ventilation.

How do I increase the ventilation in my incubator?

Start to ventilate at a low level after 3-4 days of incubation to avoid relative humidity being higher than set point for too long. Set relative humidity at 50-55% to achieve optimal weight loss. A gradually declining set point, from 60% to no less than 45%, will also deliver good results.