Incubation and Embryology - University of Illinois

Incubation Troubleshooting

Eggs clear, no blood rings, no embryonic development

Probable Cause Suggested Corrective Measure
Badly chilled eggs or eggs overheated or held at too high a temperature.

Protect eggs against freezing temperatures, gather eggs often, cool properly and quickly; hold eggs under conditions recommended by breeder.

Improper incubator temperature earliest stage of incubation.

Check the accuracy of the thermometer. Operate the incubator at the proper temperature.

Eggs held too long, or held under improper conditions of temperature and humidity.

Kept eggs under proper temperature and humidity conditions and set within ten days after date laid.

Return to Resources