Why do you stop turning chicken and pheasant eggs?

You stop turning chicken and pheasant eggs a few days before they are due to hatch, typically around day 18 for chickens and day 24 for pheasants. This allows the embryos to position themselves properly for hatching. Additionally, ceasing turning helps the chicks develop the necessary strength to break through the shell. Failure to stop turning at the right time can lead to poor hatching rates or developmental issues.