Exactly. No livestock is parasite free. It's how they handle their load that is important. Well said.
Parasite control is unique to each flock's climate, strain, and management. Each breeder has to find out what works best for their birds.
This one statement is SO true and SO important and something all livestock people need to remember above and beyond all else. Nothing else matters if it doesn't work well for each of us individually because we all have unique environments and situations. For new folks that involves a lot of trial and error and more importantly a willingness to not live by predefined guidelines but to learn and to keep in mind that we always keep learning and guidelines are never carved on stone and are a moving target.
For folks who are anal and control freaks like me that can be difficult and does it good to be reminded to be flexible periodically. ;-)