David Metcalfe's diary farm
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North Yorkshire cash cows turning muck into brass

A North Yorkshire farm shows how it is successfully harvesting cow muck to make more than it does from milk.

Washfold Farm, near Leyburn, North Yorkshire, is transforming the slurry created by 900 dairy cows into power.

Look North's Gareth Barlow has seen how it works.

  • 15 Apr 2016