Incubation and the role of carbon dioxide (CO2) in embryo development

The belief was that CO2 was harmful to the developing embryo and that fresh air and plenty of oxygen was needed for optimum chick development and hatchability. However, with atmospheric CO2 levels typically around 400 ppm, and with averaged measured CO2 under the hen at around 4,000 ppm it is obvious that the hen incubates her eggs to maintain a certain level of CO2 above what is found in the ambient environment.
calendar icon 8 March 2018
clock icon 2 minute read
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