A multistage livestock house system may include an outer frame, and a plurality of adjacent stages within the outer frame. Each one of the stages may be configured to hold livestock of a predetermined age range for a predetermined time interval. The system may also include a wash system disposed in each stage, wherein at least one of the stages is configured to be washed by a respective wash system after each time interval. The system may also include an effluent tank that is configured to collect effluent that is washed from each stage by the wash systems.
