Answer:

The fowl makes repeated unsuccessful attempts to pass the egg and becomes listless with roughened plumage.

A hard lump may be felt in the posterior portion of the body.

Inject a small quantity of sweet oil and endeavor to remove the egg by pressure. Sometimes it can only be removed by pricking the shell and allowing the contents to escape, after which remove the shell with the fingers.

In aggravated cases the egg may break through the weakened tissue and escape into the abdominal cavity, in which case the bird should be killed.