Alright, it looks like we've found a developing embryo on our first egg today.
You can recognize those red networking blood vessels and veins.
As I rotate the egg, you may see that dark object moving.
That is the growing developing embryo, and at this stage of development,
you can recognize certain structures as the toes and the beak.
Remember, I'm shining my light through the air cell here.
You can see it kicking a little bit there.
and for today's recording, we are going to be looking at 21 eggs.
For our second egg, we have another developing embro; so another winner.
You can really see a lot of activity inside of this egg.
At this stage of development, the embryo will be recognized as an actual chick.
You may see the toes towards the bottom of the dark section of the embryo.
This is day 14 of development.
As I rotate it a little bit, the black structure toward the center
is going to be the head, and you may see the eye as well in it's very center.
Two winners so far!
This egg has a little bit darker shell.
It's a brown egg. It's going to a harder see as we candle.
But if you look closely to the air cell,
you can recognize the blood vessels and veins
and in the center, you can see the embryo moving.
So we have another winner.
The previous two eggs had white shells,
so they were easier to shine a light through and candle.
We have another brown one here, but we have another winner!
You can recognize those red blood vessels and veins towards the top of the shell.
You can see the embryo - that dark structure in the very center,
we are going to recognize as the eye.
We have 4 winners so far!
This is another darker, brown shelled egg.
So it's going to be harder to candle, but we can still see those healthy
networking blood vessels and veins towards the top.
Closer to my candling light, you are able to see the embryo.
If I rotate it around toward the camera, that dark structure in the center
is the embro.
You can see it moving gently on the inside.
That's five winners!
Here we find a quitter.
This an embryo that is no longer developing.
We won't find any yolkers today, because those were all culled,
or removed from the incubator, on the day 7 candling.
So this one between day 7 and day 14 turned into a quitter.
It is no longer developing.
These eggs will be culled, just like the yolkers were on day 7.
Looks like we have another quitter.
We can recognize this one a little easier by the blood ring in the center.
Just like the previous one, something happened between days 7 and 14
to cause it to stop developing.
You can see it was a little bit further along than the previous one
You can see that darker structure which was the developing embryo
so you can see it made it a little further into the developmental process.
You can recognize this one clearly as a winner.
It has the red blood vessels and veins throughout the shell of the egg.
We have another healthy, developing embryo here.
This one have a green shell so it's very hard to see through the shell of this egg.
You can see in the center the dark structure rotating is the
developing embryo.
This is a good example here.
You can see the healthy networking blood vessels and veins.
If I rotate it towards the camera, that dark structure
is our developing embryo.
You can see it moving inside the egg.
We have 7 winners and 2 quitters so far.
This one is a darker colored green egg.
It is going to be harder to shine our light through.
This is a winner!
You an see some healthy networking blood vessels and veins
towards air cell or flashlight we are shining into the egg.
If you look closely, there will be a dark shadow in the bottom of the egg
which is the developing embryo.
This one is a little clearer. You are able to see the structure of the head.
You may see the beak toward the middle of the egg.
You can see it moving gently in the center.
See all those healthy networking blood vessels and veins.
This one is a good example, as you can clearly see the outline of the
developing chick. One day 14, you are able to see the toes and beak.
It closely resembles how it will look on day 21 when it will hatch.
Nine developing embryos and 2 quitters so far.
This one we are able to see very clearly. You can see lots of healthy networking
blood vessels and veins.
Shining through the air cell at the top, we can see the air cell gets a little bit
bigger from last week's candling, and the longer it develops.
You can see the embryo moving on the inside.
This one is a really good example since it has a white shell.
This one has a brown shell, so it'll be a little harder to candle.
But we can still see healthy blood vessels and veins toward the air cell of the egg.
It I rotate it a little bit, you can see a
darker shadow towards the bottom half of the egg.
That is our developing embryo.
This one is a quitter. As I rotate the egg you can see the
air cell doesn't stay in one place, so this one is will no longer develop.
It almost looks watery on the inside. This egg will be culled because
it will no longer produce an embryo to hatch.
Here is another winner. You can see the embryo move about in the bottom half
of the egg. As I rotate it, you have see the healthy network of blood
vessels and veins.
You can see the outline of the embryo - the shadow on the bottom.
You can see it moving on the top of your screen.
We have 12 winners and 3 quitters so far.
Another winner here!
We can tell the blood vessels and veins are thicker and more developed this week
than they were on day 7.
If I rotate it toward the camera, you can see the outline of the embryo.
You can see it moving, ever so slightly.
At this stage of development, the body will be almost entirely
covered in feathers, and the toes and beak will be almost completely formed.
Here we have another winner!
You can recognize those health networking blood vessels and veins
towards the air cell.
For those of you who may be just joining us, we are doing day 14
of development candling. So we are able to see structures and
recognize the eye, the beak and the toes.
We can see a healthy networking of blood vessels and veins in this egg.
So we have a winner!
Looks like we have another winner! It's easy to distinguish
with those healthy networking blood vessels and veins.
This one paints a clearer picture as we're shining through a white egg shell.
We are able to see structures more clearly as if we were to candle through a darker
pigmented egg such as a green or a brown. It would be harder to see an image
inside that egg. We can see that developing embryo rotate and move
inside of this egg. So we can tell that another healthy, developing embryo.
So we have another winner! For total of 15 winners and 3 quitters.
This one is a green egg. If I rotate it slightly, you can see the network of
blood vessels and veins. Remember, we are shining our light through the air cell.
And on the top of it, we can see those pores glowing.
Just like the skin on our bodies.
We see the developing embryo - that dark shadow - on the inside.
If I rotate a little, this is egg # 20, we have another winner.
We can see those healthy networking of blood vessels and veins.
Shining through the air cell, we can see the dark shadow
of the embryo on the inside.
You may be able to see it rotate or move slightly as I rotate the egg.
Showing great signs of a healthy embryo.
Now for #21. We have another developing embryo.
It may be harder to see on you screen, but there will be a shadow towards the top.
We see the beak starting to appear in this egg as it's moving in the shell.
Again we can see those healthy networking of blood vessels and veins.
And if I rotate if slightly, you can see the shadow of the developing embryo.
For those of you who may be just joining us,
it is day 14 of candling. So day 14 of development of these eggs.
They've been incubating for 14 days.
This one will give a clear picture. This is a white egg shell egg.
We are shining the light through the air cell, the glowing structure at the top.
Those red lines are the blood vessels and veins
as this egg grows and develops with this embryo.
You can see the dark shadow in the center which is the developing embryo.
We'll look at one more white egg shell egg for those of you who may have
just been joining us.
If I rotate the egg, you can see the outline of the embryo towards the center.
That dark, black spot in the center is the eye.
It looks a little more developed than last week.
We can see the outline of that embryo on the inside or the center of the egg.
OK, we'd like to thank everyone for joining us today.
Make sure to check out our other embryology resources located at
go.unl.edu/eggcam for more information.
Thank you!