Factory farms, also known as industrial farms, are designed to maximize production and minimize costs. This often means confining animals in overcrowded and unsanitary conditions. Chickens, pigs, and cows are typically housed in cramped spaces with little to no room to move. For example, battery cages for laying hens are so small that the birds cannot spread their wings. Sows in gestation crates are kept in confined spaces, unable to turn around.