deep litter
/ ˈdiːp ˈlɪtər /

imenica

Množina reči deep litter je deep litters.

System of winter bedding for cattle. Instead of clearing out soiled bedding material the farmer adds new layers regularly in order to build up a thick, warm bed.
The bedding material can be straw, shavings, or sawdust. Much of the warmth derives from rotting manure beneath successive layers, which may be up to 3 ft/90 cm deep by the end of the winter.