Can large round bales be used for horses?
Yes and no. Large round bales that are stored in a barn can be used for horses if they are free of mold. However, round bales should be used in situations where there will be enough horses consuming hay to use up the bale in few days. When a round bale is in a paddock with only one or two horses, it will be exposed to the elements for an extended period, and mold formation is likely. In addition, the horses may overeat. Round bales that have been stored outside without cover usually have a large amount of mold spoilage and should not be used for horses. Round bales can be a convenient way to feed large groups of horses, but the amount of hay wasted is probably higher than with conventional bales.