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In the 1940s, competitions were held across America to breed a new type of chicken – fat chicken that grew quickly.
Today, chicken is the most-consumed meat in the world and the factory-raised ‘broiler chicken’, as it became known, is four times the size of a standard barnyard-raised chicken from the 1940s.
“These birds can’t sustain that rapid weight growth beyond the point they’re normally slaughtered,” says Dr Richard Thomas, a co-investigator in the University of Leicester’s Chicken Project.
“Their bodies can’t cope with it. It puts a huge amount of pressure on the internal organs as well.”
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As an alternative to intensively reared farming, free range and organic have emerged as practices that offer chickens a greater quality of life. Consumers, however, are largely driven by cost.
In the UK, one kilogram of intensively reared chicken is £2, while it is £4 for free range and £7 for organic. As a result, 95 per cent of the UK’s broiler chickens are intensively reared.
Copyright 2019, The Economist Newspaper Limited. All rights reserved.
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