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Ruminant feeding regimes that include grass finishing are known to increase the n-3 polyunsaturated fatty acid (n-3 PUFA) content of beef and lamb. By contrast, concentrate finishing produces meat with increased n-6 PUFA concentrations. There is strong evidence that increasing the ratio of n-3: n-6 PUFA in the diet has beneficial effects for human health. In Northern Ireland, it is likely that feeding regimes are predominantly grass-based; therefore beef and lamb could contain appreciable amounts of n-3 PUFA. However, an analysis of types of finishing diets used by farms in Northern Ireland has not been done. The aim of this study was to assess the frequency of grass and concentrate finishing in farms in Northern Ireland.