funky eggs

[lovie chick]

what causes eggs to have a rubbery surface or no shell at all. l have been giving them oyster shells for the calcium and I feed them layer pellets. But I have gotten 2 jelly eggs in 2 days.

 

[sumi]

Have a look here:

https://www.backyardchickens.com/a/common-egg-quality-problems

(Scroll down for shell less and soft shell eggs)