How to Tell a Fertile vs INfertile Egg (Pictures)

[aart]

Quote: They can, I've read of 2 chicks in an egg, a few have even both survived to hatch...but don't know if they were 2 sperm, one yolk....or 2 yolks, both fertilized.

 

[MuscovyLover]

They can, I've read of 2 chicks in an egg, a few have even both survived to hatch...but don't know if they were 2 sperm, one yolk....or 2 yolks, both fertilized.

Hmm.... Very interesting. There's always more to learn I'm curious to know if others have had that happen
Oh how I wish I hadn't cracked that particular egg though:-(

 

[MuscovyLover]

Also, I was told (famous last words last time I said that on here) that double yolkers won't ever develop into a chick/duckling?

 

[aart]

Also, I was told (famous last words last time I said that on here) that double yolkers won't ever develop into a chick/duckling?

It's rare for sure, but if you google it there's a couple successful hatches I remember seeing.

 

[farnorth]

I've been checking my eggs and saving some to hatch.

I found 3 of my 6 hens to have distinct bullseyes . but the other 3 I found harder to tell.
Until I cracked open a store egg and saw the difference. Now I think I may have missed some that were fertile.
I originally thought the one on the left was not fertile but now looking compared at the one on the right...I think maybe
the one on the left is fertile.

What's the consensus?

 

[farnorth]

anybody?

 

[subhanalah]

It definitely looks different than an infertile egg. Doesn't look exactly like a distinct bullseye, either?

 

[farnorth]

It definitely looks different than an infertile egg. Doesn't look exactly like a distinct bullseye, either?

Yea, I'm not experienced enough to decide if that is fertile or infertile. Maybe I should just put them in the incubator and candle them after a few days....discard anything that's not showing signs of life.

 

[Cowpoke]

Yea, I'm not experienced enough to decide if that is fertile or infertile. Maybe I should just put them in the incubator and candle them after a few days....discard anything that's not showing signs of life.

I think that is what I would do. And I would candle on the 7th, 14th and 18th days and discard as required. But NOT before the 7th day!

 

[Charmdbychicks]

My 8th grade biology teacher told us that the largest single cell in the world was the yolk of an ostrich egg. Now I think that he was a big fat liar! Egg yolks appear to be composed of many cells. Yes?