The high-riseTM hog facility, located at Four M Farm in Darke County, was designed to permit conventional production practices while meeting three objectives: 1) reduce moisture content, 2) decrease odors and 3) create a product with increased value and acceptability.  Conventional practices include fully slatted floors, standard pen size and arrangement, and much of the ventilation system.  Innovations implemented to meet the objectives include an above-ground manure collection and modifications to the ventilation system.  An in-floor duct network forces air through the bedding material and manure to promote drying, maintain aerobic conditions, and encourage composting.  Exhaust fans on the lower level pull air in through the attic and distribute it, reducing odors on the upper level and enhancing drying of the manure.  Results from the first year of operation (three groups of hogs) indicate a 62 to 75% reduction in volume, a drier product, and a higher nutrient content per ton.  Ammonia and hydrogen sulfide levels on the upper floor were significantly reduced.  Pig performance in rate of gain and days to market was similar or better to a deep pit facility.  The challenges to be resolved include compensating for dunging habits that result in non-uniform wetting which inhibits composting.  Also, air quality in the lower level could be improved.