QUAIL EGGS FOR SALE HATCHING FOR DUMMIES

since the chick develops you will notice an increase in dimensions of the pocket of air at the top with the egg; That is known as the air-sac and is also separated with the chick by a membrane. once the chick is due to hatch it breaks into your air-sac, this is referred to as internally pipped and gives the chick about two days of oxygen just befor