I received 52 chicks on September 5th from cackle hatchery. Everything has been fine until a few days ago. I noticed one was having leg problems. It didn't seem to be in pain, just couldn't get around well. That's when I realized that I shouldn't be feeding them 24hrs a day. I thought I was supposed to take it from them at night when they were two weeks, but read after this that it should have been one week. In the last couple of days, 4 or 5 more have started having the same problem. So, I called cackle to ask their opinion. They asked what percentage feed I was giving them. I told them it was 18% and I was giving it to them because it was locally grown non-gmo. I fed it to my dual purpose birds and red rangers with success. She said that they have to get 21%+ or they won't be strong enough. I was thinking that the lower protein would slow the growth, and help protect them. Could I get some opinions on this and if you think they may grow out of this? Or do they need to be put down? Like I said, they don't appear to be in any pain. They just can't walk well at all.