Been raising chickens for eggs and meat for over 6 years. NEVER had an issue before. I've tried DE, garlic, and wazine but I'm still seeing roundworms in chicken poop. I've done SOOOO much research and seems like there is no good solution. Strike 3 is natural version now, I'm not going to pay a vet, and I hate the wazine treatment with the withdrawal period and besides it's an antiobiotic...kind of the whole point to having your own fresh antiobiotic free eggs. Any last ideas before I throw in the towel and sell them? And likely will get rid of these and come spring do a new flock. What's best way to keep this from happening again-tractor coop method or completely housed indoors?