Our meaties (that I think are the Jumbo's from McMurray) are about 4 weeks old now and happily living in their new chicken tractor. I've been picking their food up at night and putting it back down in the morning to keep them from doing nothing but eating. We are also feeding a starter/grower by Nutrena (slightly more expensive then regular broiler grower but they seem to be doing really well on it and we feed it to our layer pullets as well). I have noticed a few of the bigger birds are starting to have a harder time walking and I don't want these guys to be harmed at all by their desire to eat themselves to death. At some point should we start weighing out how much feed we give them? Or do we keep just giving them as much as they can eat during the day and picking it up at night? We do move them to fresh pasture daily and they do forage.