A picture of a Belgian Blue bull has gone viral due to its incredibly ripped physique.

The breed of cattle have freakish muscle-bound bodies due to a naturally occurring gene mutation called ‘double muscling’.

But many are convinced that farmers have been injecting the ‘bodybuilder bulls’ with steroids sparking a furious row online.

It comes after Knickers, a 6ft 4ins steer from Australia, hit the headlines for being ‘too big to to be butchered’.

While Knickers achieved fame because of his height, these Belgian Blues boast bulging muscles all over their bodies.

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While it’s a natural occurrence, some still claim their muscle mass is due to steroid injections.

“This should be illegal to inject so much hormones and steroids into any animal it takes it out of its natural healthy looking character. This is sick and sad,” one commenter online wrote.

“It should be illegal to inject steroids into any animal… it takes it out of its natural healthy looking character,” another added.

But others hit back at the steroid claims and explained their bulging muscles are due to genetics.

“This is a Belgian breed of cattle that looks like this because of a genetic mutation that results in increased muscle mass!!! So stop this steroid and animal cruelty nonsense.”

The mutation causes the cattle to have completely muscle-bound bodies (

Some believe the cattle are injected with steroids – but it’s a natural mutation (

However, the breed do suffer from a number of health problems as a result of their beefcake bodies.

Pregnancies can be difficult and calves often have to be delivered via c-section.

The calves often suffer from birth defects, such as enlarged tongues, which makes it difficult for them to feed from their mother.

As oversized cows continue to hit the headlines, a farmer in Canada has claimed his steer is even bigger than Aussie beast Knickers.

Karl Schoenrock, who runs Kismet Creek Farm in Manitoba, has come forward and said his ‘friendly’ big black steer Dozer is a whole inch taller than colossal 6ft 4 Knickers.

Karl and wife Raelle decided to get out a measuring tape after seeing Knickers’ story go viral and they were pleasantly surprised when Dozer came up at a whopping 6ft 5.

“He’s just the friendliest animal,” Karl told the New York Post.

“He’s not very intimidating at all, except for his size. If you stood next to him he’ll just lay down next to you.”

Knickers looms above the thousands of other cattle in his field in Western Australia (