I live on a farm. I've had many different species of farm animals on my soil. Horses, cows, goats, chickens, ducks.... not to mention dogs and cats... any of which could have had or have had some type of worms. With my horses, goats, dogs and cats, I use a worm preventative schedule. What is the best way to deal with this situation with chickens? I've read a lot that says you only need to worm one time per year... Hmmm... I am not sure that's really going to do it. It will certainly help, and maybe keep the worms from getting totally out of control, but it will not keep them worm free. I also read that if you treat for worms with chemicals you have to toss your eggs for 2 weeks. So, let's hear it from the pros. What is the best practice to keep my chickens happy and healthy?