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Glossary · Animals

Broiler

Information available in English.

Definition

What 'Broiler' means

Detailed explanation in primary glossary.

In depth

The longer answer

A broiler is a chicken specifically bred and raised for meat production rather than egg-laying. Unlike the lean, slow-growing heritage breeds of the past, modern broilers are the result of intensive genetic selection designed to maximize muscle growth in the shortest possible timeframe. Consumers encounter these birds in almost every sector of the food system, from supermarket rotisserie displays and frozen breast fillets to fast-food nuggets and restaurant entrees, making them the most consumed land animal globally.

Industrial broiler production relies on high-density housing systems where tens of thousands of birds are raised in climate-controlled sheds. These birds reach a market weight of approximately two kilograms in just six to seven weeks, a growth rate that has quadrupled since the mid-20th century. This rapid physiological expansion often outpaces their skeletal and cardiovascular development, leading to common welfare issues such as leg deformities, lameness, and heart failure, as their young frames struggle to support excessive breast muscle mass.

For the shopper, the broiler industry represents a triumph of affordability but raises significant ethical and health considerations. While chicken is often marketed as a lean, low-carbon protein source, the intensive nature of its production involves routine antibiotic use and significant environmental waste management challenges. Understanding labels like 'slow-growing' or 'pasture-raised' is essential for those seeking to avoid the welfare compromises inherent in standard industrial strains, though these alternatives typically come at a higher price point.

At a glance

Quick facts

Quick facts — Broiler
DetailWhat to know
Average Lifespan42 to 49 days before slaughter
Primary BreedsRoss 308 and Cobb 500
Global PopulationApproximately 25 billion birds at any time
Feed ConversionRoughly 1.6 kg of feed per kg of gain

In practice

What this means for you

  • Look for 'Global Animal Partnership' Step 4 or higher to ensure birds had outdoor access and better enrichments.
  • Choose certified organic labels to guarantee the birds were fed non-GMO grain and raised without routine prophylactic antibiotics.
  • Recognize that 'natural' or 'farm fresh' are marketing terms with no specific legal requirements for animal welfare standards.
  • Consider plant-based chicken alternatives which replicate the texture of broiler meat without the associated intensive farming welfare concerns.

FAQ

Common questions

Is a broiler chicken different from a regular chicken?
Yes, a broiler is a specific type of chicken bred exclusively for meat. Unlike 'layers' which produce eggs, broilers have been genetically optimized for rapid muscle growth. This means they look much bulkier and reach adult size in a fraction of the time it takes a traditional farmyard chicken to mature.
Are broiler chickens kept in cages?
Generally, no. Unlike egg-laying hens, most broiler chickens are raised in large, open-floor sheds rather than cages. However, the high stocking density means they often have very little space to move as they grow larger, leading to poor litter quality and restricted natural behaviors like dust bathing or wing flapping.
Do broiler chickens contain added hormones?
No, the use of hormones in poultry production is illegal in many regions, including the United States and the European Union. Their massive size is not the result of hormones, but rather intensive selective breeding, high-calorie corn and soy diets, and restricted movement, which allows the birds to convert feed into muscle very efficiently.