Litter re-use is a management practise that reduces the need for new bedding materials and therefore influences litter requirements. It involves growing multiple growth cycles of chickens on the same litter before removing that litter from the sheds for utilisation off site (e.g. as fertiliser), opposed to the practise of changing the litter between every growth cycles of chickens. See Litter re-use for more detail on litter re-use and management.