Cage systems are a method of housing animals, particularly in agriculture and research. These systems involve placing animals, such as chickens or rabbits, in enclosed spaces or cages to facilitate management, feeding, and breeding. Cage systems can help protect animals from predators and disease, while also allowing for efficient use of space. There are various types of cage systems, including battery cages, which are commonly used for egg-laying hens. These cages are designed to maximize production but have raised concerns regarding animal welfare. Alternatives, such as free-range or enriched cages, aim to provide more space and better living conditions for the animals.