Across the United States, nearly 10 billion land animals are raised and killed each year for meat, eggs, and milk. More than half of all confined farm animals by weight—54%—are concentrated in just 5% of the country‟s industrial animal production farms. The realities of today‟s animal agribusiness practices are a far cry from the ones embraced by the small, family farms that once supplied the marketplace. Industrialization and raising unprecedented numbers of farm animals have resulted in the intensive confinement of these chickens, pigs, turkeys, cattle, and other animals—and the intensive problems faced by those who must contend with the impacts of factory farming.
The Humane Society of the United States, "An HSUS Report: Factory Farming in America: The True Cost of Animal Agribusiness" (2008). ENVIRONMENT AND HUMAN HEALTH. 13.