Are chickens from double yolked eggs twins?
- Thread starter Syzygys
- Start date
Might be, I think. At least from what I gleaned from reading this:
http://www.sfgate.com/cgi-bin/article.cgi?f=/n/a/2008/07/18/national/a150156D13.DTL&tsp=1
Or can fraternal twins be conjoined?
Enmos
Valued Senior Member
Might be, I think. At least from what I gleaned from reading this:
http://www.sfgate.com/cgi-bin/article.cgi?f=/n/a/2008/07/18/national/a150156D13.DTL&tsp=1
Or can fraternal twins be conjoined?
Hrm correct me if I'm wrong.. but isn't the yolk just their food source ? It's not the actual embryo, the embryo would be attached to the yolk sac. And thus identical twins would share a yolk sac.
Last edited:
Nope. I thought one of them had a cut and the other bird accidentally got its foot stuck through it. Then the would closed up trapping it.
They now sell double yolk eggs by the dozen atthe store. I see them advertised on TV.
When we found double yolked eggs on the farm, my Mom started keeping an eye out for the one that was laying them. She said they were nearing the end of their egg laying abilities and would need to be butchered. Kinda like double yolk = chicken menopause. Have no idea if its true
They now sell double yolk eggs by the dozen atthe store. I see them advertised on TV.
When we found double yolked eggs on the farm, my Mom started keeping an eye out for the one that was laying them. She said they were nearing the end of their egg laying abilities and would need to be butchered. Kinda like double yolk = chicken menopause. Have no idea if its true
Actually, it's the youngest and most fertile hens that have the higest incidence of double yolks. It happens because two yolk sacs from the ovum are released at the exact same time and will be encased together in the egg. It's not a result of identical twins, just that two yolk sacs were released at the same time from the hens' ovary and came down the assembly pipe at the same time.
Older hens have a much less likely chance of laying double yolks because their ovaries slow down, not produce doubles.
And yes, the yolk sac is what feeds the embryo. Double yolked (or twin) eggs don't survive to hatching, because there is simply not room in the egg for two hatchlings to survive.
More info here; http://www.poultry.allotment.org.uk/Chicken_a/Chicken_Egg_Excess/double-yolk-eggs.php
There has been as many nine yolks in an egg.
Older hens have a much less likely chance of laying double yolks because their ovaries slow down, not produce doubles.
And yes, the yolk sac is what feeds the embryo. Double yolked (or twin) eggs don't survive to hatching, because there is simply not room in the egg for two hatchlings to survive.
More info here; http://www.poultry.allotment.org.uk/Chicken_a/Chicken_Egg_Excess/double-yolk-eggs.php
There has been as many nine yolks in an egg.
Last edited:
I don't believe either of those. I bet they do survive and are smaller than average chicks. They probably have a lower survival rate than a 1 chick egg. And on a farm, we wouldn't know if the chicks came from a single or a double yolked egg. How would you? :shrug:
Do you have a link to the 9 yolk story?
Well, it's mentioned in the one article from the Poultry people in the UK, as well as the fact about two egged yolks not being viable hatchlings. As well as here;
http://www.poultryhelp.com/oddeggs.html
http://www.poultryhelp.com/oddeggs.html
dang, I was hoping for a picture.
Guinness world records has 5 yolks listed I read.
Our chicken laid no-shell eggs every now and then. We'd go buy oyster shells for them to pick at.
yeah, never seen that before. The only way I would expect to see one of those is if I raised chickens. They would never pass inspection to make it to the store.
How do they know it's a double yolk egg?
Enmos
Valued Senior Member
Lamps
Interesting. I had some earlier and it's been bugging me since. Thankyou.