Undeveloped egg or horrible disease

[ktisathome]

Hi All

One of my chickens has produced the thing below!!! It's about an inch across, was very rubbery when I tried to break it in half and is full of white goo and whiter grainy stuff. Is this an undeveloped egg or something more serious? They are ex-batts and are about 2.5/3 years old now.

 

[Poultry parent]

that is a lash egg, which isn't an egg at all. it usually means there is an infection

 

[Eggcessive]

You may want to research salpingitis in chickens. There are some good articles to read.