My first hatch turned 5 weeks old today I took 8 hens and 2 roos for my breeder pen. the hens weigh 6.5 oz to 6.8oz and the roos weigh 7.4 and 7.5 ozs. Is this a good size for 5 wks? The other 9 I'm planning to butcher so what age or weight should I be looking for? I also have 80 more in the brooder box that will be 2 wks tomorrow and I plan on keeping another set of breeders from them. I hope I can sell the rest. One more question at what weight do you consider these birds to be Jumbo's?