Explanation:

Family poultry are kept under a wide range of conditions, which can be classified into one of four broad production systems. Free-range extensive, backyard extensive, semi-intensive and intensive. Intensive Systems are used for medium to large-scale commercial purposes and used in households. Deep Litter system is one among the intensive system here the birds are fully confined either in houses or cages but can move around freely. There are other types of intensive systems such as slatted floor system and battery cage system.