Dark spots on egg shells - can't find any info

b9135

Chirping
Nov 29, 2019
6
32
74
NW France
Hi,

I have looked at the common egg problems thread, and tried to search for information online but nothing seemed to match the issue I am having, I was hoping someone might be able to shed some light on this egg mystery for me.
I have 5 hens, four laying with no issues, and one laying these eggs. The shell is very pale but probably due to her breed / color (lavender Pekin bantam).

The eggs from her come out fine when I go get them in the coop shortly after she lays, but after sitting around for a few hours / a day, dark spots appear all over the shell.
I do not feel anything on the shell, unlike typical calcium deposits, they're not raised bumps, completely flat / part of the shell. A bit hard to see on the picture, but very visible to the eye.
egg.jpg


She is a year old, is getting the same food / treats as the rest of the flock, I feed them a quality food and change their water daily, to which I also add a bit of vitamins once a week per my veterinarian's recommendation. They have all been wormed a month ago.

Her behavior is normal, she eats well, walks around with the rest of the flock, no other issue I could see. The eggs themselves are normal, once cracked open you would have never guessed the spots were on the shell.

Thank you for any input you might have!
 
Hi,

I have looked at the common egg problems thread, and tried to search for information online but nothing seemed to match the issue I am having, I was hoping someone might be able to shed some light on this egg mystery for me.
I have 5 hens, four laying with no issues, and one laying these eggs. The shell is very pale but probably due to her breed / color (lavender Pekin bantam).

The eggs from her come out fine when I go get them in the coop shortly after she lays, but after sitting around for a few hours / a day, dark spots appear all over the shell.
I do not feel anything on the shell, unlike typical calcium deposits, they're not raised bumps, completely flat / part of the shell. A bit hard to see on the picture, but very visible to the eye.
View attachment 2036001

She is a year old, is getting the same food / treats as the rest of the flock, I feed them a quality food and change their water daily, to which I also add a bit of vitamins once a week per my veterinarian's recommendation. They have all been wormed a month ago.

Her behavior is normal, she eats well, walks around with the rest of the flock, no other issue I could see. The eggs themselves are normal, once cracked open you would have never guessed the spots were on the shell.

Thank you for any input you might have!
It's just her egg.
Sometimes when the bloom dries, the colors change or these nuances appear. If she is acting otherwise perfectly normal and the contents of the egg are normal, it's nothing to worry about.
 
Thank you all for your replies, I feel better now. I always wondered why those spots only appeared after a few hours, never even considered it could be the bloom drying. I was worried something was wrong with my hen.

Once again I learned something from this wonderful community!


@aart I have no experience candling, as I do not have a rooster / need to check for fertilized eggs. Would the shell being porous be an issue I need to worry about if I never plan on hatching eggs?
 
@aart I have no experience candling, as I do not have a rooster / need to check for fertilized eggs. Would the shell being porous be an issue I need to worry about if I never plan on hatching eggs?
You can't candle to see if an egg is fertile.....until it's been incubating for a few days.
I've hatched porous eggs, some do fine, others not so much....
.... tho could be other things that made those eggs fail to develop.
 

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