Not having the best of luck with my current batch of freedom rangers. They are 7 weeks and look about 3weeks. On a 21% protein diet and in a chicken tractor that is moved daily. I have lost almost 10 of then, no rhyme or reason. Currently treating for cocci as I have nothing to lose at this point. People have said I got a bad batch. So what do I do? Keep feeding them as see what they do? Butcher date is nov 8, there is no way they will be ready. After that date it will be too cold outside for them too and I'd have to park their tractor in the barn. What gas been your experience and what did you do?