The broiler industry published figures show a 1.95 pounds of feed for a 1 pound live weight gain up to 8 weeks of age to reach market weight for the Cornixh X, then the feed conversion rate starts to go down. Others eat much more to reach market weight since they have a lower feed conversion rate and take far MORE time ( like 18-24 weeks) therefore it is impossible for them to come close to that gold standard. My RIR, BR,and NH gave me a yield on average 3 1/2 -5 lb dressed weight at 18-20 weeks of age. My Cornish X now yield for me on average a 4 1/4- 5 lb carcass at 6 weeks of age and 6-8 lb carcass at 8 weeks of age. That equation alone, gave me a $$ savings on feed and at least 10 to 12 weeks less labor. Since I puchase 1 day old chicks, I no longer have to keep a production flock over winter and run an incubator to hatch chicks, so I have an additional savings on feed, power, and labor costs for an additional savings per pound of meat produced.