ANALYTIC HIERARCHY PROCESS (AHP) FARROWING THERMAL COMFORT PIG NURSERY ENERGY SAVING FEED CONVERSION RURAL BUILDINGS THERMAL STRESS MULTICRITERIA ANALYSIS LEAN MEAT STRESS AGRIBUSINESS IMAGE ANALYSIS SIGNAL ANALYSIS HEATED FLOOR SWINE MANAGEMENT AIR QUALITY BACKFAT THICKNESS MEAT HYGIENE LABOR WELFARE TRACEABILITY WELFARE ASSESSMENT ELECTRONIC IDENTIFICATION ASSESSMENT MULTICRITERIAL ANALYSIS NOISE LEVEL MEAT QUALITY EVAPORATIVE COOLING SOUND SIGNALS SOUND ANALYSIS SHELF LIFE FUZZY SIMULATION ENTHALPY MATHEMATICAL MODELLING GASES HEAT LOAD ANIMAL WELFARE TOLERANCE THERMAL COMFORT INDEX FEED INTAKE AIR VELOCITY COLIFORMS VENTILATION