Alarming scenes captured at Scottish salmon farms supplying Co-op, Sainsbury’s, Lidl, Aldi, Morrisons and M&S reveal putrid conditions that lead to invasions of parasitic sea lice. Painful non-medicinal lice management systems that breach basic animal welfare standards on the treatment of farmed animals were also filmed – one of which was operating in a designated Special Area of Conservation and Marine Protected Area famous for its rare flame shell bed. Around 70 per cent of Scottish salmon farms are RSPCA Assured, while the remainder conform to other supposedly ‘high welfare’ ce...