Deep litter system

Birds are reared on floor covered with litters like straw, saw dust, leaves, dry grasses, groundnut shells, broken up maize stalks and grasses up to depth of 8-12 inches.
In about 2 months, it has usually become deep litter
Birds and eggs are safety as enclosed in deep litter intensive pen, which has strong wire netting or expanded metal.
Built-up deep litter also supplies some of the food requirements of the birds.
Generally 35 laying birds can produce in one year about 1 tonne of deep litter fertilizer. The level of nitrogen in fresh manure is about 1%, but on well built-up deep litter (one year old) it may be around 3% nitrogen, 2% phosphorus and 2% potash.