Description - Fiem MG 140/200 RURAL Manual De Uso

EGG-CANDLING
At 8th - 10th day of incubation, it is advisable to candle the eggs in order to eliminate those which are infertile; this operation must be done
in a dark room. By observing the inside of a developing, fertile egg, using a suitable candling lamp, it is possible to determine the embryo
development which looks like a small reddish shape, composed of the heart and small arteries which are radiating from it (Fig. b).If the egg is
moved lightly, it is possible to see clearly the rhythmic oscillations of the embryo.
On the contrary, an infertile egg appears completely transparent (clear), with a slight darkening where the yolk is. (a).
If during the candling operation, you find some eggs with a reddish spot stuck or attached to the shell, or a central spot surrounded by one
or more concentric hoops, or something nebulous crossing the inside; then in this case, the embryos are either false or dead, and must be
taken out of the incubator to prevent them contaminating other eggs with bacteria by infection or explosion
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: Fiem analogue / LCD control panel;
2: Dry bulb alcohl thermometers(°F);
3: Wet bulb alcohl hygrometer (°F);
4: Plastic window;
5: Metal setting trays;
6: Hatching basket;
7: Air outlet with regulating shutter (ref. MG 140/200);
8: Location for water basin;
9: Safety fuse 2 A.
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It must be noted that in case the air-chamber shrinkage is major than the details reported into the table, it will be necessary to increase the humidity value; contrariarly if it results smaller, it will be necessary to
decrease the humidity value.
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Chasse
a) Infertile egg
b) Egg with normally developing embryo
c) Egg with dead embryo at 5th - 6th day of incubation
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