I last wormed my girls in December with Valbazen due to tapeworms. Worked fine with all but one gal. They seem to not leave her. She went downhill. Dawg suggested I-Gold for her. Unfortunately she passed away last week. ( Couldn't get rid of her worms) SO , today someone has worms in their poop again. I didn't see who it was. My question is, a few of my girls are moulting and is it safe to use the wormer during this time? I have read that it will stunt their feather growth. Since most are moulting and not laying, would be a good time to give it to them. Thank for your input.