Just for reference sake, someone (I think Imp. That's the type of thing he would do) posted a copy of an advertisement from way before the "broilers" were around. That advertisement was for Dleaware chicks that would dress out at 4 pounds at twelve weeks if memory serves me right. That's when Delaware and New Hampshire were the "commercial" broilers.
Those genetic lines are pretty well lost, but if you can come up with a bird that does that, you may be onto something.
Those genetic lines are pretty well lost, but if you can come up with a bird that does that, you may be onto something.