WilTec 52170 - Page 5

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tor (breeding process on multiple stories on top of/next to one another) is used, the measured temper-
ature should be at around 37.5 ℃ at any point of the egg.
An overview of various poultry types and the required breeding temperatures:
Type of poultry
Breeding temperature
Chicken
37.4–37.6 ℃
Duck
37.4–37.6 ℃
Pigeon
38.5 ℃
Goose
37.6 ℃
Quail
37.6–37.8 ℃
Note: A short drop in temperature whilst checking the eggs, is usually not a problem for the embryos.
It is different with temperatures exceeding the recommended one. These are harmful and even deadly
and should be avoided at all costs.
4. Does my thermometer show an exact value?
Thermometers are not exact. Keeping the temperature constant can prove to be difficult, even with
good thermometers. If you run a big incubator over a longer period of time, you can optimise the tem-
perature, regardless of what the thermometer states.
After the first breeding process, the temperature can vary (higher or lower).
With poultry: If the hatching takes places in an early stage, the temperature should be lowered. If the
hatching is delayed, it needs to be increased.
How to check the thermometer: Keep notes regarding the time of the brood, as these are a reliant
aid. You will soon have the required routine to select the right adjustments and settings for a success-
ful hatch.
Alternatively, an additional thermometer can be placed in the incubator to be able to perceive the vari-
ous temperature differences and readjusting the temperatures of the incubator accordingly.
5. What has to be the air humidity rate?
The required air humidity varies again depending on the brooded type of animal and needs to be
changed during the breeding process.
Please inform yourself beforehand, which requirements need to be met in the incubator. Here are two
examples:
Chicken eggs:
Day 1–18: 50–55 % air humidity
From day 19: 70–75 % air humidity
Quail eggs:
Day 1–14: 55 % air humidity
From day 15: 75 % air humidity
The air humidity is increased towards the end of the breeding with poultry eggs, it softens the hard
membrane inside the egg. Without the increased humidity, the chicks cannot break through the mem-
brane and therefore also not through the egg shell. Yet, the humidity should also not be increased too
much, as the chicks might drown.
Note: The humidity is monitored with a so-called hygrometer. It is near enough impossible to keep the
humidity as exact as the temperature, especially in small incubators. Just try to keep it as exact as
possible.