Egg fertility

[AmandaBraddick]

Can anyone tell me please if these eggs are fertile and had started to develop? Had checked previous eggs and i thought they were fertile (bullseye in yolk). So put these 5 in my incubator but at day 11 this is what they look like. Are the whites in the yolks signs of development that has stopped for some reason? Thanks.

 

[sourland]

Those eggs are not fertile. The 'spot' is the nucleus or germinal disc, but does not have the bullseye appearance of fertile eggs. The white stringy stuff is the chalaza. Has your rooster been mating the hens ? If they are overly fluffy birds, it may be necessary to pluck/trim around their vents.

 

[CluckerFamily]

Those don’t look fertile. The white dot in the yokes aren’t the bullseye shape.

 

[JessesChickens101]

Not fertile

 

[My2butterflies]

Definitely not fertile. If they were incubated for 11 days there should be a very obvious embryo growing.
I know the frustration of waiting on eggs to be fertile. I experienced it last year waiting for my guinea eggs to be ready for the incubator.

Here is what you are looking to see in a none incubated, cracked open fertile egg.
Guinea egg.

Fertile chicken egg.

These next two are NOT fertile.

You can clearly see the white dote on both eggs, and what looks like a darker yellow/orange ring around the white dote. But they are not fertile.

 

[AmandaBraddick]

Definitely not fertile. If they were incubated for 11 days there should be a very obvious embryo growing.
I know the frustration of waiting on eggs to be fertile. I experienced it last year waiting for my guinea eggs to be ready for the incubator.

Here is what you are looking to see in a none incubated, cracked open fertile egg.
Guinea egg.
View attachment 2504655
Fertile chicken egg. View attachment 2504658
These next two are NOT fertile.
View attachment 2504656View attachment 2504657
You can clearly see the white dote on both eggs, and what looks like a darker yellow/orange ring around the white dote. But they are not fertile.

Thanks for your help. So is this egg fertile?

 

[AmandaBraddick]

You’re welcome And yes, it is fertile

Thank you. I think it might have just been bad luck then. Just cracked four eggs and three looked fertile. It's a shame coz it was an experiment. The eggs are from my Lavender Araucana and i haven't seen my silkie rooster mate her once. I do have a massive buff Orpington which i thought was a hen try and mate her though.. Hence the experiment! Thanks again

 

[Mellowmalt]

up to 10 days should not affect them if stored cool

 

[My2butterflies]

Oh yes I've got to give it another try. What's the oldest egg you would recommend incubatoring please? I want to collect a batch but dont want to leave the first egg too long if you see what i mean. My silkies seem fine up to 8 days. Would you say that's about right?

I try not to use ones over a week old for best results.
Just date the eggs with their “laid date” so you can see how well newer ones do opposed to older eggs.

 

[Weeg]

Second problem... If this egg hatches will the chick be okay on it's own or do i need to source some 1 day olds for it? Obviously it won't be on it's own when it gets a few weeks old but will it need company from the word go? Again any advice gratefully received. Thanks

Yes, you will have to get some one day olds for it. They don't do well on there own.