I've noticed a couple of hens that have died in my flock that are extremely thin. I'm suspecting worms but have not been able to see any. I have not seen any when I've checked the digestive tract when I've done necropsies. (I don't have the funds for a professional necropsy). Well I think I should treat my flock for worms but the only one I have is Wazine. You can't use the eggs for 2 weeks after treatment. I also have sheep and use Ivermectin for them but I've never used it on the hens. I've also found that Valbezan is a good broad spectrum wormer. I guess my questions would be... Is there a waiting period to use the eggs after using either of these wormers? Which one would be better to use? Any information would be great.