I have 23 FR chicks that are 4 weeks old tomorrow. In the last week, I have 2 chicks that seem to be having some leg issues. There are 7 or 8 with the same problem out of the 99 that were all ordered together and split between families. It does not make sense to me that this would be happening. All of our chicks are growing slower than any other FRs that I have read about, so that should not be the problem. Anyone else have this experience?