U use the unrelated dog when ur dogs begin to lose that pop. When ur litters begin to be a touch below what u normally produce introduce the unrelated pup. That litter will be what ur used to seeing. Take those pups back to ur tight bred dogs and breed as u feel until they get 'stale' again
If u are inbreeding and linebreeding there will come a time when u will need to introduce some new blood. If u keep it too tight too long ur blood will get stale. This is what we saw when we were breeding pits. When u take a tight bred dog introduce some new blood our pups were dynamite. Then when we took those pups back to our linebred dogs our consistency went back up
Josh, that makes sense, but it will be a long time before the blood gets that tight.
