Cobb-Vantress has developed the hatcher management programs as a reference for the ideal time, temperature, ventilation, and humidity conditions for a proper incubation process.
T
THE HATCH WINDOW
The hatch window is the time frame spanning from the first chick to the last chick hatching.
Chicks hatching too late can cause:
Photo 1. Just right
Photo 2. Early hatch
For optimal hatch and chick quality, it is critical to maintain a uniform temperature and humidity across the hatcher.
Table 1. Hatch window assessment
Graph 1. Ideal percent hatched and ideal hatch spread
In addition to chick temperature, the eggshells in the hatcher basket can be used to indicate if adjustments are needed to the time and temperature of chicks in the hatcher.
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Precision Matters: Tackling Quality Issues in on‑Farm Vaccination
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