Deeply distressing video showing chickens having their necks wrung as they flap in terror has been released by animal activists.
US supermarket giant Walmart has said it will investigate after undercover cameras allegedly showed how hens are killed at a farm in its supply chain.
In one instance, a worker is seen twisting an animal's head until it comes off. It is among a string of allegations made by campaign group Peta after sending an undercover investigator to the egg farm in Licking County, Ohio.
Activists said that hens were seen cooped in cages alongside dead and decomposing animals. In some instances, Peta claims workers failed to kill hens, leaving them suffering for hours - and even days.
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