Laying Yolks

[Rebecca13]

Hello all, my flock of 5 has decided yet again to test what little chicken knowledge I have gained by laying only yolks. We've had shell-less eggs before, but this is the first time I've seen them lay yolks without shells. It happened yesterday and this morning (see below photo). When I search online I keep coming up with egg yolk peritonitis and that doesn't sound good.
They will be a year old in October; two of the chickens have dirty butts, I'd read that's a sign that they're laying the yolks. Much to their dismay I picked them all up yesterday and checked their vents; nothing looked out of place. The RIR with the dirty butt had a clean vent that was pink; the Delaware's was a bit harder to see than the rest, and now I'm debating before work to hold her down and try to get a better view. None of them are acting abnormally, but if this is an infection I'd rather get on top of it before any of them start looking sick.
I appreciate any help or advice.

Thank you!

 

[TheCluckyClucker2]

I can't help you but maybe these people can:
@azygous @Wyorp Rock

 

[FeatherTay]

It looks like poop..?

 

[Rebecca13]

It's Yolk for sure. One of the other chickens was eating it and it had the consistency of a cracked yolk. I wish it was just poop. Actually maybe I dont...

 

[FeatherTay]

Well i’m not for sure saying it is poop, it just reminds me of it!

 

[azygous]

If you try reposting the photo of the yolk and select "Full image" instead of thumb nail we can zoom in and maybe see the yolk better.

If it's only yolk coming out without albumen or membrane or shell, that's troubling, all right. But if the yolk hasn't broken as it comes down the oviduct, they're probably okay. You would have seen signs of yolk on their butt feathers.

You need to clean all their butts so you can better monitor what comes out if it clings to the feathers. Back each one up to a basin of warm water and splash the water onto the butt to loosen the grime, then rinse well. Pat dry and/or blow dry. They love being blow dried, don't worry.

You need to start giving calcium citrate to each hen you suspect is laying these abnormal eggs. Just push one whole tablet into the beak and it will slide right down the throat no problem. This is what you need to get.

 

[Rebecca13]

Is this a better photo? I'm on mobile so it's not cooperating properly.
I'll get the Calcium pills and I'll clean their butts. I wish I knew if it was coming out whole or not I've only seen it once it's hit the droppings board.
Thank you for the info!!