How can I be sure that the humidity level is adjusted correctly during incubation?
If maintained properly during the incubation stages, the egg will weigh about 12% less at pipping than its beginning weight. If too much (more than 14%) or too little (less than 10%) moisture is lost, the embryo may die at hatching due to improper moisture control. If the beak and nostrils of the unhatched (dead) chick are matted and plugged by remnants of a thick fluid, the humidity during incubation (not hatching humidity) was probably maintained at too high a level. Refer to the publications “Hatching Quality Chicks” and “Hatchery Management” at the poultry web site. Return to Questions Why do my chicks die in the egg after they pip or break the shell? If chick embryos develop to the pipping stage, or at first shell cracking at hatching, they are normally healthy enough to hatch unless some incubator adjustment prevents it from happening. The problem is usually caused by either 1) poor ventilation or 2) improper humidity. The air exchange requirement within an incubator is greatest
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- How can I be sure that the humidity level is adjusted correctly during incubation?
