I have a hen who keeps laying eggs with a soft spot. The shell is mostly normal except for a circle of extremely thin shell, about the size of a penny. No other hens are having problems, and none of the other shells are thin. I did have an issue a few weeks back where a few of the girls had weaker shells than usual for a little bit (maybe a week), but that stopped... I don't think it's a nutrition problem if it's just one hen laying such an odd egg... could a sickness cause this? Stress? I've seen the article here on BYC that explains a lot of egg problems and causes, but there's just nothing like this one in there, or anywhere else I've searched. This has been going on for maybe three weeks (?) now. It's not every single day, but it's definitely often, sometimes for 2, 3, or 4 days in a row.
Here's a picture of an egg from last week. Notice the dark area around where the shell is broken - that's the soft spot. The shell is extremely thin in that spot only - it's so thin it's like an old, crumbly piece of paper. The membrane is always normal and intact. We've gotten some eggs where the shell in that circle was so thin that it actually looked like a dented egg because the shell just fell in on itself without really breaking.
Now here's some video of an egg we got today. It bubbled out!! It's crazy! The bubbled spot is still thin, I actually broke it right after I stopped filming because I put my fingernail over the spot and gently pressed it to try to feel if it was hard or not.
These soft spots are always in the same place on the egg, the egg is always slightly flattened in shape, and they are always darker where it's soft. I just can't find any information on eggs like this. Is she sick? Is this stress? Why would one hen out of 16 healthy, normal layers spit out these oddball eggs? I can't pick out who the culprit is, they're all behaving normally (except my broody, who's in broody jail this week - but that's another story!). Any ideas??
Here's a picture of an egg from last week. Notice the dark area around where the shell is broken - that's the soft spot. The shell is extremely thin in that spot only - it's so thin it's like an old, crumbly piece of paper. The membrane is always normal and intact. We've gotten some eggs where the shell in that circle was so thin that it actually looked like a dented egg because the shell just fell in on itself without really breaking.
Now here's some video of an egg we got today. It bubbled out!! It's crazy! The bubbled spot is still thin, I actually broke it right after I stopped filming because I put my fingernail over the spot and gently pressed it to try to feel if it was hard or not.
These soft spots are always in the same place on the egg, the egg is always slightly flattened in shape, and they are always darker where it's soft. I just can't find any information on eggs like this. Is she sick? Is this stress? Why would one hen out of 16 healthy, normal layers spit out these oddball eggs? I can't pick out who the culprit is, they're all behaving normally (except my broody, who's in broody jail this week - but that's another story!). Any ideas??