Time-Motion Analysis of Feedlot Manure Collection Systems

摘要: ABSTRACT MACHINE productivity, energy consumption and cost of feedlot manure collection were determined by time-motion analysis at four Texas cattle feedlots. Truck loading, hauling, spreading time require-ments also determined, as was the performance wheel loader operators. The loader/chisel plow combination produced highest col-lection rate 160 t (metric tons)/h (at 100 percent operating efficiency), followed in order ele-vating scraper, loader, loader/roto-tiller. most efficient system elevating scraper (0.88 kWh/t). Plowing pack before reduced overall 30 increased 46 percent. average loading into spreader trucks 186 t/h or 3.0 min per truck. Performance oper-ators varied 85 A prediction equation for truck turn-around versus haul distance developed.