The most efficient way to condition separated manure solids for use as bedding is to let mother nature do her work. With a windrow compost turner, once every week for 3-4 week, you will mix the compost to aerate the entire windrow and promote the composting process. After 3-4 weeks, you will have a sanitized compost to use as bedding. The thicker the bedding under the cows, the more milk they will produce.
Windrow Compost Turner from HCL Machine Works