Hatching your own
eggs is a wonderful experience. Caring for the eggs, making sure the
temperature is just right, ensuring there is enough humidity, and
then going through the nerve wracking experience of watching the
chicks’ struggle to escape the shell can be very rewarding. After
all of your hard work, of course you will be nervous the little ones
hatch successfully. Then you see one that seems to be in trouble.
Your first instinct may be to help it, and that is fine, but you
should know a few things first.
As it incubates, the
embryo is encased by a membrane consisting of blood vessels. These
vessels provide oxygen that enters the egg through the shell to the
embryo. Several days before hatching, this network of vessels begins
to break down and the embryo lacks sufficient oxygen. The egg will
have slowly dried out during incubation, forming an air sack. This
sack is pierced by the chick in order to get oxygen. Since there is
not a lot of air in the sack, the chick will continue to peck until
it ‘pips’ a tiny protrusion on the shell which allows for a
greater flow of oxygen. After pipping, the chick will rest for 12 to
24 hours.
Once the chick has
rested, it starts to make its way out of the egg. It starts at the
pip before turning slightly and pecking again. The chick will
continue this pattern around the egg until it forms a ‘lid’ which
it can push open and wiggle out the rest of the way. During this
process, the chick will take several breaks until it is finished
about 1 to 3 hours later.
These rest periods
are where most nervous soon-to-be bird parents think they are needed
the most. After seeing and hearing movement only to have them go
quiet and still can be stressful. Knowing when and when not to help a
chick hatch is important.
When you help could
mean life or death for the chick. If you help before the network of
blood veins has completely broken down, you can cause the chick to
bleed to death. Following are three scenarios and our recommendations
for each.
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The chick forms a hole where it pipped and does not start rotating within the shell. In this situation you must be careful as not everything went as it should. You can try to help, but stop and try several hours later if you see blood forming where you have broken the shell.
In the following video, we did not see blood until the 'lid' had been taken off. Make sure to stop and try again several hours later whenever you see blood.
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If the duckling has started turning and breaking the shell, then runs into a problem and stops turning, you can normally help them without a problem. The key is they have started turning in the shell which means the blood vessels under the shell have shut down and you can help them without fear of excessive bleeding. Gently pull the head out from under the wing and allow the chick to escape the rest of the egg on its own.
The following video shows a variety of eggs where the 'lid' has not been developed and the chick has not turned, but we were able to help them because there was no blood.
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If the chick has gone completely around and formed a ‘lid’ only to get stuck, you can definitely help them out by removing the cap.
Many believe that
helping during hatch will make the chick weak. This is not
necessarily true. You could have a perfectly healthy and fit chick,
but due to less than ideal incubation conditions, it may not be able
to hatch on its own. On the flip side, it is possible to get a weaker
chick when helping a less than healthy chick to hatch. As author and
waterfowl expert Holderread says, hatching is like a “fitness test”
for the chicks.
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