British fashion designer Stella McCartney is showcasing plant-based alternatives to real feathers in her latest collection, as the animal-rights campaigner takes on the "barbaric" farming of birds for clothing.

"I've been having the conversation about not killing cows and goats and snakes or any living animal to be made into a shoe or handbag in my industry for over 30 years," McCartney told AFP after her show during Paris Fashion Week on Tuesday evening.

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