Having problems getting your eggs to hatch?
Use this chart to trouble shoot incubation problems.
Incubation Trouble Shooting Chart
|Many clear eggs. No blood. (Determined by candling, then broken out appearance.)||1. Infertility. Too
few males, too many males, males too old, males inactive, or frozen combs and wattles.
2. Embryo died early 1-2 days.
|1. Use young vigorous males.
2. Do not hold eggs longer than 7 days. Keep at temperature of 50-55 degrees. In moist atmosphere. Gather often.
|Slight blood rings||3. a. Improper temperature.
4. Improper care of eggs before setting
|3. a. Check accuracy of
thermometer. Check thermostat, heating element, current supply. Check
operating temperature against instructions.
b. Do not fumigate at high concentrations during the first 5 days of age.
4. See suggestion (2) above
|Many dead germs||5. Temperature too high or
6. Improper turning of eggs
7. Improper feeding of flock
8. Breeding (low hatchability inherited).
9. Improper ventilation, insufficient oxygen.
|5. see suggestion (3)
6. Turn at least 3 times, preferably 5 every 24 hours.
7. Check vitamin and mineral content of breeder mash.
8. Avoid close inbreeding.
9. Increase ventilation of incubator and incubator room, avoid drafts.
|Pipped eggs not
Hatching too early.
Hatching too late.
11. Too high temperature.
12. Too low temperature.
13. Probably too high temperature.
evaporating surface for moisture. First 18 days wet bulb of 85-87 degrees, 3 day
hatching period 89-90 degrees.
11. See (3) above.
12. See (3) above.
13. See (3) above.
|Cripples or malpositions||14. Temperature too
15. Too low temperature.
16. Improper turning or setting.
17. Hatching trays too smooth.
|14. See (3) above.
15. See (10) above.
16. See (6) above. Set eggs large end up.
17. Use wire bottom trays.
soft-bodied, weak chicks.
Dead on trays, bad odor.
|18. Low average
19. Poor ventilation.
20. Navel infection in incubator.
|18. See (3) above.
19. See (9) above.
20. Careful cleaning and fumigation of incubator between hatches.
|Rough navels.||21. High temperature or
wide temperature variations.
22. Low moisture.
|21. See (3) above.
22. See (10) above.
|* Does not include 'big bones' slightly 'green' chicks resulting from high moisture since these chicks will live and ship well.|
|** Chart courtesy of University of Kentucky: Agricultural Experiment Station, Poultry Section|
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