Black sliver in egg

[gritsar]

I still say meat spot. It was probably brown in the raw egg (which of course you couldn't see because you hard boiled the egg) and it turned black with the cooking.

Meat spots are different from blood spots, but both are harmless.

Meat spots are tiny bits of tissue from the reproductive tract:

http://www.thepoultrysite.com/publications/1/egg-quality-handbook/29/meat-spots

While blood spots are just that, tiny specks of blood:

http://www.thepoultrysite.com/publications/1/egg-quality-handbook/28/blood-spots

 

[Jesseschickens]

They can occur when a hen is frightened or stressed
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[BirdMan32]

Thank you to all who responded.

No photo, our daughter discovered it and said "eww!", it's in the trash now.

I may have gotten it wrong as far as who layed it, because the egg was white.

We collect our eggs 2 or 3 times a day. Sometimes they are still warm!

We even got a double yolked egg from our #1 layer, Princess, a New Hampshire Red.

 

[jeslewmazer]

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And from exercise and sometimes it is just the hen. There might even be more reasons that those.

 

[gritsar]

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Yeah doesn't have anything to do with it being fertile.