At what age do you butcher dual purpose?

[Just a Whittle]

Hi

Just wondering at what age is it good to butcher dual purpose birds? My birds aren't there yet but I am definitely starting to tell the roos from the pullets and unfortunately it seems I have probably at least 7 of my original 12 as roos.... we are keeping the pullets for eggs but butchering the roos (maybe keeping one roo so we can do our own chicks next year). They are currently only 5 weeks old and probably around 2 lbs each (just a guess I haven't weighted them just held them)

 

[Cindiloohoo]

16-20 weeks. Depends on how you want to cook them, and how long you want to feed them. Shorter for fryers, and longer for roasters.