MUTANT "double muscle" pigs and cows are being bred to potentially help ward off beef and pork shortages.
Shocking images of the super-sized farm animals have emerged as scientists reveal selective breeding and genetic mutation behind the monstrous muscles.
One replied: ‘This is a Belgian breed of cattle that looks like this because ofa genetic mutationthat results in increased muscle mass.
"So stop this steroid and animal cruelty nonsense."Double muscling occurs in animals which lack a certain protein that regulates its muscle growth.
Although it is natural, the way the mutation has been perpetuated is not, says PETA (People for the Ethical Treatment of Animals).