I get my hay supplier to convert the bale to small square bales- usually 10 per big bale. You are cheaper with the big round bales but need the space. I found that there is more dust etc in the big round bales - I guess that gets lost in the square baling process. I don't know if it was related but my sheep got pink eye (infection) the year I changed to round bales and high feeders - caused a lot of problems.................