Skip to content

Glossary · Industry

Factory farming

Industrial, high-density animal agriculture.

Definition

What 'Factory farming' means

Optimized for output; houses 99% of US farm animals.

Related terms

In depth

The longer answer

Factory farming, formally known as Intensive Livestock Production or Concentrated Animal Feeding Operations (CAFOs), is the dominant industrial method of raising animals for food. It is characterized by high stocking densities and the prioritization of output efficiency over individual animal welfare. Most consumers encounter the products of this system in every aisle of the modern supermarket, from shrink-wrapped poultry and cartons of eggs to processed dairy and cheap cuts of pork or beef.

The system functions by treating living beings as biological machines within a highly automated supply chain. Animals are typically confined in indoor environments, such as battery cages for hens or gestation crates for sows, where movement is severely restricted to maximize space. To prevent disease outbreaks in these crowded conditions and accelerate growth, the industry relies heavily on routine sub-therapeutic antibiotics and specialized high-calorie grain diets that differ significantly from the animals' natural foraging behaviors.

For the consumer, factory farming offers historically low prices and consistent availability, but these come with hidden costs regarding public health and environmental stability. Intensive confinement increases the risk of zoonotic disease transmission and contributes to antibiotic resistance, while concentrated waste runoff often pollutes local water systems. While some labels claim higher welfare standards, the vast majority of global meat production remains rooted in these industrial practices, making informed sourcing a complex challenge for shoppers.

At a glance

Quick facts

Quick facts — Factory farming
DetailWhat to know
Global Market ShareOver 90% of farmed animals worldwide
Technical TermConcentrated Animal Feeding Operation (CAFO)
Primary InputsSoy, corn, and prophylactic antibiotics
Environmental ImpactHigh methane emissions and nitrogen runoff

In practice

What this means for you

  • Look for third-party certifications like 'Global Animal Partnership' or 'Certified Humane' to identify higher welfare standards beyond basic legal requirements.
  • Reduce reliance on processed meat products, which are almost exclusively sourced from large-scale industrial facilities to maintain low price points.
  • Research local farmers' markets where you can verify husbandry practices directly with producers rather than relying on vague marketing terminology.
  • Consider plant-based proteins as a direct way to bypass the industrial livestock supply chain and its associated environmental footprint.

FAQ

Common questions

Is factory farming the same as commercial farming?
Not necessarily, though the terms often overlap in modern discourse. Commercial farming simply refers to farming for profit, whereas factory farming specifically describes intensive, high-density methods that prioritize industrial throughput. While a small family farm can be commercial, it only becomes a factory farm when it adopts extreme confinement and industrial-scale automation.
Why is it so much cheaper than organic meat?
Industrial operations achieve low prices through economies of scale and the externalization of costs. By packing thousands of animals into small spaces, they reduce land and labor costs per unit. However, the environmental cleanup and public health impacts are often paid for by taxpayers rather than reflected in the shelf price.
Can I tell if meat is factory-farmed by the label?
Labels can be misleading, as terms like 'natural' or 'farm fresh' have no legal definition regarding animal welfare. Unless a product specifically carries a high-level welfare certification or is marked as 'organic'—which mandates some outdoor access—it is statistically certain to have originated from a standard intensive factory farm.