Abbeville progress. (Abbeville, Vermilion Parish, La.) 1913-1944, 1918-04-13
EGGS FOR Matching
REQUIRE MUCH CARE
EMBRYO DEVELOPMENT BEGINS
WHEN THE TEMPE nature
REACHES 70 DEGREES.
GATHER EGGS FREQUENTLY
Eggs For Matching Should Be Kept
in a Cool ard Dry
Place.

Good Matching eggs may be easily
spoiled by improper handling between
the time they are produced by the
hen and the time ineuba ion begins
The embryo may be destroyed. or its
development seriHtisly hindered, by
subjecting the egg to. uneven or ex-
tremc temperatures, 10 an improper
moisture content of tie air, to a sud
den jar or constant vibrations, or to 4
lack of turning.
Some development bf the embryo
viii take place at comparatively low
iempe natures. that is, in HE neighbor-
hood of seventy degryts OF above. IL
the development of he embryo is
once started and then stopped by the
temperature going too low, the EN-.
bryo will be destroyed Exc rssivPIy
low temperatures will weaken the vi
tally of the embryo. 1t is important,
then. that the eggs should be kept in
as even temperature as possible,
and preferably between the limits OF
fifty sixty degrees. Eggs which
are allowed TO remain in the nest for
Two or three days at a time will he
subjected TO great range # tempera-
lures. During the nights the temper
atures will reach low POINTS, and dur
ing the day the heat IF he sun, as
well as the heat from the bodies OF
hens upon the nest, vii raise the tenn
perature to the incubation point So
that this is one of the worst possible
practices. Gather the eggs at least
once day. and durgrs either very
hot or very cold weather, twice a day
will be better.
If eggs are kept n a cellar, or
damp place, the moisture of the air
will have the same action as water
applied directly to the shell. It will
slowly dissolve this coating, leaving
the pores of the shell open and re-
suit in too rapid evaporation when
the eggs are incuhated. Keep the
eggs in cool, dry place.
The interior of the egg is a CON-
pick arrangement It is not neces-
sary that every person burden them
selves with the exact meaning of all
the component parts Of an egg, such
as the vitellus, the b'astoderm, the
meso-blast, the chalazae, and others.
1t should suffice to say that the germ
or embryo is situated On the yolk of
the egg which in turn i suspended in
the center of the albumin, or white of
the egg, by a thicF, cord-liksv,b:
stance. Any sudden Ar, ONO We.
constant vibration vii %
en- these supportifha swo$ allowirr
the yolk to moyescrac2 proper po-
sition. Then. toy, evap5&tion of water
from the egg forms an aircell in the
large end of the egg. The same jars
or vibrations will sometimes break
the membranes forming this air-cell,
allowing the contents of the egg to
move around freely, and destroying
the egg for Matching Purposes. When
it is necessary to ship eggs for hatch
ing, or otherwise subject them to lar
or vibration, they should De securely
packed in such a way as to reduce
the shock as much as possible. Nest
of the Matching egg boIes which are
on the market are made with this OBJ
ject In view.
The embryo is found on the upper
portion of the yolk. The yolk has a
tendency to float to the top of the
egg. II left in one position too long
the supporting chords becoming weak
ened, there is danger ihat the yolk
will come into contact With the she'll.
and become attached. This would, of
course. ruin the egg fer incubation
purposes. Then too, wita the natural
tendency for liquids to sink and air to
rise, when eggs are left in one posi-.
ton the air cell may become misplac-
ed, or irregular in shape. This re.
suits IN the developing chicken being
forced into the wrong position In the
shell and making a successful hatch
impossible. These dangers can be
avoided by regularly turning. rolling.
or otherwise changing the position Of
the eggs daily.
A. F. Rolf, Poultry Specialist,
Live Stock Extension Service, Louis.
lana State University.