refuses to eat

Hi everyone, I've got a piggy that's just over 4 years old now. a couple of days ago he had a surgery done under anaesthetic. That was for his teeth. I don't know why but since the surgery he has not been eating at all and he lost almost a pound in the last 2 months. I've been trying to force...

So. My girls refuse to eat anything other than their hay and pellets, besides the occasional lettuce. I have tried so many different things, they respond to none of them. Berries, bananas, bell peppers, parsley, oranges, cucumbers, kiwis, celery, etc. Is there any advice, pointers, or recipes...