verification of pulmonary rates
The first thing that you will notice when you place a fertile egg
into the Buddy digital heart monitor is the visual heart readout.
This readout lets you know that the embryo is alive. The heart icon
flashes to indicate that a heartbeat is detected; the pulse line
reflects the strength of the heartbeat; and the three-digit heart
rate indicates the amount of beats per minute. The heart rate of
a developing chick in the shell is staggering when seen for the
first time. Most parrot and parrot-like birds have a heart rate
of around 260-290 beats per minute (BPM) during the majority of
the incubation period. (Note: If using Buddy for reptile eggs you
can expect heart rates of approximately 60-70 BPM).
our trial of Buddy, an egg at midterm of incubation was placed into
the monitor. The LCD display indicated that the BPM was around 260.
After a few minutes the egg began to cool and the heart rate dropped
to 220 BPM. At four minutes the BPM was down to 180-190. This is
quite natural during incubation. As the hen leaves her nest for
short periods of time the embryos metabolism slows down consequently
the heart rate slows down.
and external pip
Toward the end of incubation a developing chick will 'internal
pip'. This is a critical stage where the chick must force through
the internal membrane that separates the developing chick from the
'airsac' end. This normally happens 36-72 hours before hatch and
can last for several hours. During this stage it becomes difficult
to get an accurate readout on the Buddy heart rate monitor because
the chick is moving and pushing inside of the egg. This activity
creates sounds, which Buddy amplifies 20,000 times and displays
to the Buddy user as chick movement. The chicks movement is indicated
by the screen icon of a chick flapping its wings. Only when the
chick rests during this period will you get an accurate BPM readout.
You will notice that during this time the heart rate begins to decrease
to around 190-200 BPM.
the 'internal pip' stage your chick will begin to 'external pip'.
This is when the chick begins the task of pipping around the inside
of the shell and this normally takes the remaining 24-72 hours of
the incubation period. Again, all this movement is amplified more
than 20,000 times so the 'chick moving' icon will be busy. As during
internal pip, the chick will rest and the heart rate will be displayed.
you can visually see that the chick is pipping the entire circumference
of the egg, then a perfect hatch is probable. However, if you see
that the chick is pipping in one area only, then the chick could
be stuck in the internal membrane. If after the two-day hatching
period the chick is still in this one position and Buddy is indicating
that the heart rate is down around 90-100 BPM, assistance will be
required to save the chick. This assistance can be safely carried
out as long as the two-day hatching period has elapsed.
to prevent D.I.S.
after the two-day hatching period Buddy is indicating a weak heart
rate and no 'pips' can be seen, then the chick may be breach. Again,
assistance is generally required to successfully hatch the bird
from the shell.
lets you know when birds are not hatching normally and provides
you with the opportunity to help save these chicks that may otherwise
have been Dead in Shell (D.I.S.). We have had numerous phone calls
from Buddy users who say they were able to save a chick that would
otherwise have been DIS because it could not get out!