Battery cages are a housing system used for various animal production methods, but primarily for egg-laying hens. The name arises from the arrangement of. A battery cage, sometimes called a conventional cage, is designed to house laying hens, meaning female chickens who produce eggs. After being. The vast majority of egg-laying hens in the United States are confined in battery cages. On average, each caged laying hen is afforded only 67 square inches. The floors slope downwards so the eggs that are laid can roll down to be collected. Because the hens aren't given perches, they must stand on. you'll already know we've long been concerned about the welfare of Australian layer hens being kept in barren battery cages. Battery cages are primarily designed to achieve high density, by being stacked on top of one another. A single egg-producing factory farm. Confining hens in battery cages is by far the industry's most where the proportion of cage eggs is thought to be higher than those sold. Battery cages do not provide for most of the needs of hens, for example hens owing to a lack of empirical data, when the policy was being developed. We explain the difference between the outlawed battery cage and the enriched However, battery cages continue to be used in many other. Imagine being locked in a cage so small that you cannot even spread your arms. Layer hens do not have to be confined to the torture of battery cages.