Egg Problem

[Sue S]

Advice needed.... Why did 1 of my females lay this kind of egg this morning??? I've noticed that a couple of eggs that I've collected over the week have been " different" the shells were hard but they looked & felt grainy, like they were rolled in sand. Now this morning I found this egg???

 

[Peaches Lee]

Maybe their diet is a little out of balance. I'm not experienced with ducks, but with chickens adding oyster shell and making sure they have a proper diet (not too many treats LOL!) is key to healthy egg laying. Hopefully, someone versed in ducks can help out!