Yeah, it's definitely a consideration when people are reading others results. Free range vs confined and high protein meat ration vs. a grower of 18% or starter of 20%. Certainly not a controlled study but if what people used for feed and individual flock management are noted others will still get a good idea of certain birds growth and feed use. Use there own educated analysis of what's been done. I'm really excited that this thread might work out. A data base and place for people to get real info on what's out there and what is being done. It's looking really good so far! Hope someone with breeder stock New Hampshire joins in. That I've a lot of interest in seeing results on.