Outsiders will wonder how the chicken hatched. Insiders want to know what to pay attention to chickens. Here are the key points for hatching chicks.
1. Preheat eggs into the hatch
Transfer the eggs kept in the air-conditioned egg bank to the indoor preheating at 22°C-25°C for 6-8 hours to remove water vapour on the eggs. After the temperature of the egg-charging table reaches room temperature, the eggs are incubated in the tray.
2. Control temperature
3. The temperature is the primary condition for the development of chicken embryos. The temperature control during incubation should be steady, and it should be avoided. The hatching period of the chicks was 21 days: 1 to 6 days incubation temperature of 38.5°C, 7 to 14 days of 38°C, 15 to 18 days of 37.8°C, and 19 to 21 days of 37.4°C.
Control humidity
4. Control the humidity, in the early stage can make the embryo heat evenly, in the middle and later stages is conducive to heat dissipation and clam shell hatching. Under normal circumstances, relative humidity: 1 - 7 days for 60% - 70%, 8 - 16 days for 50% - 55%, after 17 days for 65% - 70%.
Ventilation
Chicken embryonic development must continue to exchange gas with the outside world, especially in the late post-incubation period, embryos begin lung respiration, oxygen demand increases, carbon dioxide emissions increase, then increase ventilation and ventilation, keep the air fresh
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