How chicken became the rich world’s most popular meat

IN A SHED on a poultry farm just outside Colchester, in south-east England, thousands of chickens sit on piles of their own excrement. The facilities will not be cleaned until after the birds are killed, meaning they suffer from ammonia burns and struggle to grow feathers. Ants and maggots crawl over the bodies of those that have not made it to slaughter. The chicken industry is a dirty business, but it is also a profitable one. In the OECD, a club of mostly rich countries, pork and beef consumption has remained unchanged since 1990. Chicken consumption has grown by 70% (see chart).

Humans gobble so many chickens that the birds now count for 23bn of the 30bn land animals living on farms. According to a recent paper by Carys Bennett at the University of Leicester and colleagues, the total mass of farmed chickens exceeds that of all other birds on the planet combined. In London, some 50 miles west of Colchester, fried-chicken shops are ubiquitous. Many are named after American states (including Kansas and Montana, not to mention Kentucky). But schoolchildren and late-night partiers are unfazed by the strange names. Nor do they worry much about where their meal came from.