TROUBLESHOOTING THE FAILS

OPENING THE FAILS - LATE DEAD-IN-SHELL

There's a way to troubleshoot the fails.
1. Is there an external pip? Is it normal, aligned with the embryo lying in the correct position, low along the edge of the air cell? If there is an abnormal external pip, go to Step 6.
2. Candle and draw a line around the edge of the air cell. Compare the size with the pictures. Go to Step 2.
3. Put the egg in an egg cup. Tap and open the air cell end. Is the beak in the air cell? If yes AND if the air cell was on the small side, you have the first candidate: Excessive humidity during incubation and the hatchling suffocated. If no, go to Step 4.
4. It's normal for the inner membrane to be tightly wrapped over the embryo. If it is, the embryo got to drink the available fluids in preparation to hatch, causing the membrane to drawdown over it. If the inner membrane is loose, the embryo died earlier.
5. Tear the membrane and feel if the embryo is moist or sticky. If sticky, was the air cell on the large side? Sticky and small embryo can be excess heat, driving the process too fast. It can also be deficient humidity during the incubation stage, with the embryo crowded in. Sticky and large embryo can be deficient heat. It can also be excessive humidity during the incubation stage.
6. If the embryo looks and feels normal, check if it's malpositioned. Is the head under it's wing? Which wing? The right wing? Or where?
7. Was the external pip too high? And the head over not under the right wing?
8. Or too low, a mid-egg pip? And we turned the eggs by rolling not rocking? Was the air cell damaged? Did we not turn the eggs for the vital first 24 hours?
9. Or in the wrong end? And turning was suspect?
10. Or in the centre of the blunt end? And the head is in between the legs?

These are the mechanical checks. Your records should tell you if you had the correct starting conditions regarding nutrition and benchmark machine accuracy and settings.

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