In July we had the misfortune of a dog attack. Since then egg production has diminished down to nothing. At first I chalked it up to stress. Then I added replacements and felt that was again more stress. Now the new pullets have started laying some. I haven't had a worming program. In October I started dosing black walnut extract to their water and pumpkin season hit. I've read a bunch and was hoping the combination might get them laying again. I haven't seen any worms in stools, I've been watching for a while. I've read all the naysayers regarding ineffectiveness of pumpkins, so please let's not get into that. My questions are 1) how should I proceed 2) how long can a chicken go without laying and begin again 3) besides taking a stool to the vet, what are the signs of a worm infestion 4) suggestions other than worms for loss of egg production?