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Hi Big!
From time to time some Marans may lay a chaulky whiteish to grayish purplish coated egg. When it is wet it should be a nice colored Marans egg underneath that coating. The coating should dry pretty quickly and as you watch it dry it will dry right back to that whiteish chaulky coating. Nothing to worry about, some pullets and hens can lay one every now and then and some can lay one almost everytime they lay. I believe its just extra heavy bloom that is deposited when laid. The only thing I found with these eggs is that they can be very hard to hatch. I had a Splash Marans hen that laid these eggs almost everytime she laid. I think last winter I tried hatching them all winter long and finally the last attempt with 6 of her eggs...a couple hatched. One lays a normal Marans egg all the time and the other lays a coated purplish one like her mother.
Yesterday I got one from a Black Copper pullet that normally lays a very dark egg.....yesterday's egg was actually a smokey lavender color, like the color of a Croad Langshan egg. In it's own right, it is a very pretty egg. I just took it out of the refridgerator and when it gets back up to room temp. I will get a picture of it for you. I have noticed that these types of eggs will get darker when cold, but sat back out at room temp. they will change back to the chaulky coated egg.
I have also had this same smokey purplish coating happen in my Welsummer eggs and Barnevelder eggs. I don't think that it is something that just happens in dark egg laying breeds, I believe it happens in all breeds and on the lighter tan to cream colored eggs it just isn't as pronounced or as easy to see as it is on the darker eggs.
Hi Pink,
I just wanted to add that diet may have something to do with the chalky eggs. I had a bunch of hens laying them and could not understand why. It lasted almost two weeks and they were back to normal.
I then remembered that I cleaned out the fridge and had given them alot of blocks of cream cheese that I bought over the holiday and then never got around to using. They loved it- gobbled it up. But then the chalky eggs started happening.
Since then, they get nothing with alot of calcium other than oyster shell (and they pig that down anyway)
So, I am not sure if this is what caused it but I am sure suspicious.
I am on page 73 and working my way up. And here I thought that nothing much was going on and I didn't need to get on....