It can happen sometimes. Also if they got a weak/no shell then u should mix some eggshell in their food or that additive stuff that’s basically just small mineral rich rocks to help em get enough to make a proper shell.
If feeding eggshells, it’s best to cook them in the oven a bit and then grinding them with a mortor. 250f for 10 mins should do it.
Oyster shells work well if you can get em. Other bivalves can work too but oyster is easier for the chickens to crack apart. You just want to bake it at like 250F for 10 mins
It can happen sometimes. Also if they got a weak/no shell then u should mix some eggshell in their food or that additive stuff that’s basically just small mineral rich rocks to help em get enough to make a proper shell.
If feeding eggshells, it’s best to cook them in the oven a bit and then grinding them with a mortor. 250f for 10 mins should do it.
Oyster shells work well if you can get em. Other bivalves can work too but oyster is easier for the chickens to crack apart. You just want to bake it at like 250F for 10 mins
Here’s a few other methods. https://www.backyardchickens.com/articles/feeding-your-chickens-oyster-shells.77372/