Abstract
Municipal ordinances to remove farm animals from city limits played a central part in defining city planning's role in urban ecosystems, economies, and public health. This article examines the regulation of animal agriculture since the eighteenth century in four cities: Baltimore, Boston, Philadelphia, and New York. Across the nineteenth century, municipal ordinances to remove farm animals from city limits set the tone for the planning profession, aligning it with the field of public health in creating a hygienic city. In the efforts to untangle animal agriculture from waste management, public space, and urban food supply, urban authorities employed some of the first land-use regulations in the United States, shaping new planning powers. Ordinances banning slaughterhouses, piggeries, and dairies culminated with zoning as planning became a profession. These regulations ultimately allowed planners to transform cities and their food environments by dismantling a system in which animals and their caretakers among the urban poor had played integral parts in food production, processing, and municipal waste management. Unpacking the objectives, debates, and impacts of these early regulations reveals enduring tensions and challenges as planners today seek to reweave animal agriculture into cities.