Trucks, utes and even dogs will descend on city centres around the country today, as farmers take part in a huge protest.

The Howl of a Protest event, organised by Groundswell New Zealand, will see thousands of farm vehicles rumbling through cities in protest against what farmers say is increasing interference from the Government, unworkable regulations and unjustified costs.

Agriculture Minister, Damien O'Connor, told Mike Hosking a few things weren't quite right when the Government rolled them out.

But he says it's released discussion documents for freshwater farm plans and made adjustments to winter grazing.

“We don’t claim to be perfect, but the intent of what we’re doing here and the timelines I think are sound. It’s been a year of Covid, there’s a lot of pressure on our whole economy, on people.”

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• 'We're fed up': Huge turnout as tractors, utes take to cities