So, my little(heh) mixed flock I'm raising up will have 2-3 roos, assuming I can get them to get along and not be aggressive towards each other, but even if that's the case I plan on at least 1 Roo in with the girls and doing some hatching of mixes for myself. Question is, I know the roo(s) will mate anything female, but is there an acceptable "standard"of Linebreeding cut off before it becomes a major concern? I know work my German shepherds for instance you want to go no More than 5. My boas you can go even further along (and I've even had partho litters with the boas, interesting subject but I digress). I've seen 2 generations and 4 generations in similar posts from ages back but wonder if that's due more to trying to compare chickens genetic makeup to people than any sound science, and this just throwing out numbers? Thanks in advance. I am a plan-a-holic l.