It was Marian Harkin who perhaps hit the nail on the head. A poor Mercosur deal, she said, would mean an Irish cow cull in one swoop. I think she’s right.The suckler herd is hanging by a thread, despite record beef prices, and indeed record prices at the top end of the market for pedigree livestock. But the lived experience of the average suckler farmer, with 16 cows, has very little to do with €30,000 heifer calves, never mind hundred-cow dairy herds.