The circle banner. [volume] (Circle, Mont.) 1914-1939, 1923-03-16
CARE lN HANDl LING INCUBATOR
NECESSARY TO SUCCESS

varies when placed in various posi-
lions within the egg chamber.
Regulation by Screw
The temperature should be regu
lated by turning the set screw on the
regulator rather than raising or low
ering the flame of the lamp. How
ever, if the incubator is operated il
room where there is a great varia-
ton between the day and night tenn
peratures, this method will have to
be used.
After the eggs have been put in
place the temperature they should be
brought to is 103 degrees, and that
as quickly as possible. 1t is parti-
cularly important that the tempera-
ture should not vary much from this
point during the first three days or
until after the first turning. This
temperature is maintained through
out incubation or until the eggs be-
gin to hatch, when it is allowed to
rise to 104 or 1045 degrees, where
1t is held until the end of the hatch.
Turning and Testing Eggs
The eggs should be turned the
first time on the morning of the
third day, and afterwards twice daily
until the nineteenth day. In turning
remove few eggs from the center
and return the eggs removed to the
edges of the tray. AS soon as the
eggs are turned, return the tray to
the incubator, reversing it so that
the back edge will come in front.
On the tenth day test the eggs and
remove all those that are infertile.
For testing the eggs secure a shaded
lamp so arranged as to shut in all
the light except at one place about
one-third the size of an egg. Darken
the room and test the eggs by hold
ing them before the light. The ster-
lie eggs will show clear except for
the slightly darker yolk.
Dark Spots Dead Germs
Developing germs can be distin-
guished by the network of veins run
ming out from them. Dead germs ap-
pear as dark spots, sometimes float
ing or attached to the she'll.
Moisture is supplied from the start
in machines that have moisture pans.
1t is usually the plan to remove these
pans when the eggs are turned for
the last time, but with those ma
chimes in which it is possible to keep
the chicks out of the nursery, the
pans should be allowed to remain
until the hatch Is half or two-thirds
completed, when they are to be re-
moved and the chicks allowed to drop
into the nursery. The presence of
the moisture, coupled with the ex-
IRENE heat, seems to force the chicks
out of the shells, making quick
hatch and preventing the chicks from
sticking to the shells after they have
been pipped.
Non-Moisture Machine
With a nomenclature machine the
eggs should be sprinkled twice daily
with water at temperature of 105
degrees. Begin sprinkling the third
day when the eggs are turned and
continue until the eggs are pipped.
As soon as the hatch is completed
remove the egg tray and open the
ventilators. The temperature should
be gradually lowered to between 100
and 102 degrees. The chicks should
be held in the incubator until they
are thoroughly dried, period rang
ing from "a to So hours during which
time they are not fed or watered.
Darkening of the incubator chambers
during this time prevents crowding
and jostling of the chicks and thus
their strength is conserved to start
quick growth as soon as they are re-
Il