Questions about Double Yolkers

[ricky bamboo]

hi - I have 8 RIR all laying nicely. I usually get one double yolked egg every day or so. It is always recognizable because it is about 1/3 larger than the others, and i'm always a little more eggcited to fry it up!
1) How are double yolks produced?
2) Is there a way to promote double egg production in hens?
3) Could I figure out which hen is laying it or could it be any one of them on some sort of a rotating schedule?

thanks in advance for the info!

 

[Kristi912]

I'm glad I'm not the only one with a freakish chicken! I've got one that does that too. She is a RIR cross. Shes the only one that I have that does it and I thought maybe I had a goose in my coop the first time I saw it lol! Sorry this doesnt answer your question but hopefully someone will so I'll know too.

 

[debilorrah]

I have heard that certain breeds produce more doubles than others. Especially BO's. They are known for it. I hope so - I have 5!

 

[Tashua]

I'm glad I'm not the only one with a freakish chicken! I've got one that does that too. She is a RIR cross. Shes the only one that I have that does it and I thought maybe I had a goose in my coop the first time I saw it lol! Sorry this doesnt answer your question but hopefully someone will so I'll know too.

Same for me