Meat from lambs raised on 300 farms in Wales could have been contaminated due to an illegal chemical sheep dip that is thought to have been used by some farmers.


Some farmers in Wales are believed to have been illegally dipping sheep in a form of Cypermethrin, a pesticide that is normally used on crops. The chemical is up to six times cheaper than approved sheep-dip pesticides, but has never been tested for use on animals and is believed to be harmful to human health if an excessive amount is consumed, reports BBC News Online.


“We don’t know what effect the arable formula of Cypermethrin has on sheep because it hasn’t been tested on animals,” said a spokesman for the Veterinary Medicines Directorate.


The Environment Agency said the amount of the arable form of Cypermethrin that had been sold in hill farming areas was far too large for a region that does not grow many crops.


Earlier this year, a fall in the number of brown trout in the river Teifi was attributed to the illegal dumping of Cypermethrin in rivers.

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