Fiem MG100 B.Family Скачать руководство пользователя страница 15

Страница: 15 / 50

The correct ventilation for a full load of eggs will, necessarily, be too much for only a partial load of eggs. The level of oxygenation can be con-

trolled by adjusting the diameter of the ventilation control placed on the upper panel (ref. MG 100/150). For the model MG50 adjust at the same

time and simultaneously the diameter of the two ventilation holes placed respectively on the superior panel (expulsion of carbon dioxide-outlet

dirty air) and on the door (air oxigened immission-inlet clean air); instead the model MG70 has two ventilation holes placed on the superior

panel which should be adjusted always at the same time.

ATTENTION:

Never completely close the ventilation control because it would change all the values of temperature/humidity and aeration,

thus compromising the incubation results.

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

a) Infertile egg

b) Egg with normally developing embryo

c) Egg with dead embryo at 5th - 6th day of incubation

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

It must be noted that when the air-space is smaller than shown in the table, it is necessary to decrease the humidity value; when the air-space is larger than shown in the

table, the humidity must be increased.

•

INCUBATRICE MOD.

MG50 JUNIOR SPECIAL

ELETRONIC

THERMOSTAT

READING

THERMOMETER °F + CASE

COMPLETE

PLASTIC PORT

HOLE

WATER BASIN