I have a 4x8 coop with an additional 10x12 run. The chicken coop that has a dirt floor that I usually just add yard waste to and then clean it out every few months, its great at making compost. My daughter is going to be raising a 4h swine and I want to remodel the chicken coup to be 10X8 barn and then I will make a separate hen house for the chickens in their run. The question is would it be unsafe to put a pig in a barn where chickens have lived for the past 5 years? would the chicken manure remnants be bad for it?