Periodic candling during embryonic development is necessary to ensure the best hatching results. Using a good candling lamp, it is possible to check
the growth of the air-space. The pictures shown herewith show the air-space growth as related to hen, turkey, and pheasant eggs.
If the air space measurements appear similar to those
shown in the picture, it means that the embryo is developing
correctly, and that the amount of humidity supplied in the
machine is right. If the air space is not developing
correctly, it means that it is necessary to change the level of
humidity supplied to the machine.
2. DESCRIPTION
1: Lcd control unit or analogical thermostat ELTP1
2: Wet/dry bulb thermometers (°F) fixed to door
3: Water basin 100 ml for hygrometer
4: Shelves for plastic setting trays)
5: Hatching tray (or hatching basket)
6: Air outlet with regulating shutter
7: Location for water basin
8: Safety fuse 2 A
9: Automatic egg turning device
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It must be noted that when the air-space is smaller than shown in the table, it is necessary decrease the humidity value; when the air-space is larger than shown in the table, the humidity must be increased.
a) Infertile egg
b) Egg with normally developing embryo
c) Egg with dead embryo at 5th - 6th day of incubation
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