Chickens bred for meat (known as “broiler chickens”) live, on average, for 33 days before they are slaughtered.
Selective breeding has greatly increased the speed at which broiler chickens reach slaughter weight, down from 120 days in 1925.
Because of artificial selection for rapid early growth broiler chickens often suffer from skeletal malformation and dysfunction, skin and eye lesions as well as heart conditions.
The breeding stock (broiler-breeders) grows to maturity but also suffer welfare issues related high feeding and beak trimming.
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