Just a thought here, a long time ago I was told not to raise young chicks on wood shavings. If the hen raises them it is fine, because she will teach them not to eat the shavings, but if we incubate and hatch there is no mom to teach them not to eat the shavings. Too many shavings and their crops can become impacted and they will die. I don't know if this is true or an old wives tale, but I never put mine on shavings until they are at least 8 weeks old. They go from towels the first 2 weeks to a wire bottom cage for the next 6 weeks.@Garden Peas I don't think it was coccidia that killed them - they were acting totally fine. None of the chicken chicks got sick at all. They were in a brooder with pine bedding. I didn't see any blood in the poop or anything like that. They should have been warm enough - the temp was 102 directly under their light. No difficulty hatching, no red bellies, not foot problems. They seemed to be eating and drinking but they were being brooded in my workshop so I wasn't able to keep a very close eye on them. No vitamins in the water.
This time around though they will have their own brooder, I'll go with a higher protein feed just in case, I'll put vitamins in the water, and I'll brood them in my garage so I can keep a close eye on them. I really want these guys to do well if I can hatch them.