Farmers affiliated with NFU Cymru have held a protest outside the Tesco base at the Royal Welsh Show.
The campaigners accuse supermarkets of stocking too much meat from outside the UK and going back on pledges made after the horsemeat scandal.
ITV News asked Tesco representatives for a response, but they declined to comment.
More top news
A band of showery rain will move northeastwards this morning, this will be heavy at times and may give the odd rumble of thunder.
After a week that's seen divisions between Welsh and UK Labour over Brexit and how the party is run, the First Minister calls for unity.
The stage is set and the strategies formulated. But how will Wales fare when the talking stops and the action starts in Toyota on Monday?