Sandra Higgins, from Slane in County Meath, set it up last year, after starting a “farm sanctuary” with 100 animals - or “residents” and “non-humans”, as she calls them - in 2008.

Initially, she campaigned in her home country of Ireland, but after receiving donations she has expanded her advertising campaign to other countires.

Last year her organisation, a not profit company, focused on the UK launching high profile and costly campaigns in Birmingham, Wolverhampton and Newcastle Upon Tyne.

The group is particularly keen on targeting university campuses, bus shelters, digital billboards and taxis with their highly emotive adverts.

Writing on her website, Ms Higgins, who is in her 50s and obtained a degree in psychology from the Open University, says the pressure group’s goal is “the liberation of non-humans from human suppression and to support them in whatever way possible to regain their sovereignty.”

She adds that she also aims to “let the animals be the spokespersons for their rights by their strong public presence”.

The group’s YouTube channel features videos including “You Haven’t Lived Until You’ve Hugged a Turkey”.

Ms Higgins dedicated Go Vegan World group to the memory of Matilda, a hen that she says she rescued from a “petting farm” in 2012 and died a few years later.