Hatch Waste Breakout
After the hatching process, surveying the hatch waste is very important. Look for signs of stress by noting how much fecal material is left on the hatcher tray. A large amount of material signifies that the chick may have been in the hatcher longer than necessary. Break open all unhatched eggs that may have been pulled during the incubation period, or eggs that failed to hatch that were left in the hatcher.
As you break open the eggs, note the color, odor and appearance of the albumen yolk and membranes within the egg. Note as well the size and position of the embryo (if found) within the egg. Small sized chicks with little feather covering denote early embryonic death. Larger sized chicks covered well with feathers denote late embryonic deaths. To decide what you may be experiencing, try to eliminate any of the common problems seen: