A number of embryos dead from the sixth through the sixteenth days of incubation.
|Probable Cause||Suggested Corrective Measure|
| Incubator temperature much too high.
| Check accuracy of thermometer. Operate incubator
at proper temperature.
| Infected embryos - either by infection from dams
or external microbial contamination
| Provide adequate ventilation of the hatcher room
and proper openings of the hatcher ventilators.
| Lack of ventilation.
|Provide adequate ventilation of the incubator room and proper openings of the incubator ventilators.|