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
Ken Owens has lamented poor discipline from Wales that effectively saw the whistle blown on their NatWest 6 Nations title hopes.
After a frosty start it will be dry and fine with plenty of sunshine and virtually cloud-free skies.
Carlos Carvalhal admits his gamble backfired as Swansea dropped back into the relegation zone after being thumped 4-1 by Brighton.