Arla, the Danish dairy co-op, has increased its prepaid milk prices for farmer members by close to 50% over the last 12 months as the global dairy market has recovered.Reporting its financial results for the first six months of 2017, Arla said its performance price increased by 19% over the period to 35.8c/kg, compared to 30c/kg during the first half of 2016. This performance price measures the value Arla generates from each kilo of milk supplied by its farmer suppliers, which own 100% of the dairy co-op.