Bread is basically sugar. 2 slices of bread is the same thing as 1/4 cup of table sugar. While it might not effect egg production, it can effect long term health.
In people, sugar knocks out your immune system for up to 5 hours. Not sure if it has the same effect on chickens, but I wouldn't take the chance.
In people, sugar knocks out your immune system for up to 5 hours. Not sure if it has the same effect on chickens, but I wouldn't take the chance.