Any luck with double yolkers/twins?

[Jenna1414chickens]

Everytime I heard that someone has tried to hatch double yolkers, it hasn't turned out very good, and most of the time they have both ended up dying so I recommend not trying to hatch them.

 

[we5farmers]

Good morning!
I wasnt sure where to post my question but it kind of relatez to this thread sooo..

Is it possible that my rooster was a twin but he mostly absorbed the other? When he hatched he had an area on the back of his neck where the fluff looked stuck together. We thought it would fix itself as he deathered out. It didn’t. As his feathers grew in they grew in a kind of “lump”. We jokingly called him lump neck. As hes gotten older and started crowing we decided to check the area again. It appears as if he has comb and wattle material in that area of the “lump”. It does not seem to affect him at all it just looks weird. We’ve now named him Kuato (from Total Recall) just in case.
Thanks in advance for any replies!

 

[OF65]

Very interesting. Double yolk chicks might have an extra wing only . Before they started being more careful with eggs sizes, I saw many results. But this is one I had not heard about or seen..

 

[we5farmers]

Very interesting. Double yolk chicks might have an extra wing only . Before they started being more careful with eggs sizes, I saw many results. But this is one I had not heard about or seen..

I received the fertilized eggs from a friend who is also a amateur chicken keeper. I had two broody hens but no fertilized eggs.

 

[Kat C]

There are two ways to have twins. In humans two eggs are fertilized and you get fraternal twins which are just siblings sharing the same womb. In the case of identical twins you have one egg fertilized by one sperm that at some early point separates into two fetus and thus the kids have exactly the same genetics.

A double yolk egg is the same as fraternal twins, two ova fertilized by different sperm that get trapped in one egg shell. I have not heard of single yolk eggs developing into two chicks. If they did there would definitely not be enough food for them as the egg would have a single yolk. In humans the mother can deliver extra food for either type of twins but in chickens the nutrition for the chick is fixed when the egg is laid. In a double yolker there are at least two yolks and the egg is bigger. Still a dicey problem.

More than likely you just have a genetic defect rather than part of a second chick attaching to the fetus. However I did find this https://en.wikipedia.org/wiki/Diprosopus
https://en.wikipedia.org/wiki/Dipro...uffed_chick_with_two_beaks_and_three_eyes.jpg And there is a two headed chicken at this link http://www.acf-fr.org/63/8-two-headed-animals
So perhaps you have a rooster that started as an identical chick where one fused and didn't develop. Lucky for him he just has a bump left.

 

[Hyroler]

i thought i had a couple double yolk eggs hatch single chicks a while back.Im beginning to think they wernt double yolks since I have tried several times since with no luck

 

[Kat C]

i thought i had a couple double yolk eggs hatch single chicks a while back.Im beginning to think they wernt double yolks since I have tried several times since with no luck

You could have had double yolks and one of the chicks died early on and was absorbed by the other. Please don't try to set double yolk eggs. It gives the two chicks less than optimal start in life and most don't hatch. Even though the egg is bigger it isn't double in size so the space, nutrition and surface area to get air to the chick are all less than normal. While the occasional successful hatch of two chicks from one egg is good for novelty, the novelty is all for us humans and the chicks suffer for our quest for novelty. Since they are fraternal they are no more related than two chicks from two eggs from the same cross. They are just separate eggs that accidentally got put in one shell. Start candling your eggs before you set them to avoid setting double yolks.

 

[lazy gardener]

IMO, it's not likely for the double yolk egg to have one embryo absorb the second. (because the 2 embryos would be separated by the distance of the 2 yolks. But, what do I know! The situation being described: a single individual posessing genetic material from 2 distinct sets of DNA is called Chimerism. The individual would be a Chimera.

https://www.medicinenet.com/script/main/art.asp?articlekey=8905

https://www.ranker.com/list/chimera-animals/mariel-loveland

In the case of the roo with comb and wattles growing on the back of his neck, I would guess that he is a chimera! The second link shows a number of animal chimeras including a rooster.

 

[lazy gardener]

Personally, I consider it unethical to set double yolkers "to see what will happen".

 

[Hyroler]

Personally, I consider it unethical to set double yolkers "to see what will happen".

Unethical that is a stretch.Personally I find it a challenge to try and hatch double yolk.I also believe it's ok to experiment on rats and mice.