Okay, newbie here, I need reassurance please. I have broilers that are 5 weeks old. They just don't seem to be that big. I estimate that they are somewhere around 1-2 pounds. They just seem small to me to be butchered in 3 weeks. I have 29 in a tractor that I move every day. I feed them 12 hrs on and 12 hours off. I started them on Dumor chick starter and switched them to Purina flock raiser at about 2 1/2 weeks. They get all the food they can eat with some grit. I guess my question is, are they where they are supposed to be? I just worry that they won't be big enough to butcher at 8 weeks. Thanks!