Modern cage farming system used today are clean, automated and highly efficient. Modern sheds include automated feeding, watering, climate control kept at 23°C, ventilation, lighting, and manure and egg collection. the minimum space allowance per hen in a cage farming system is 550cm2 per bird, though the average cage size ranges from 1800cm2 to 11,000cm2. There must be a 10cm feeder space and a minimum cage height of 40cm.