Impacted/sour crop help
I had a young pullet once with sour crop and tried to get her to vomit, which did get some out. But the lady at the feedstore said to try pineapple juice. It works. Which sort of makes sense because it is often sold in health food stores as Bromelain tablets which helps you to digest your food. I can't remember if I got her the juice or just feed her pineapple pieces. Her crop was done in a few days.