Base prices for NI milk are at their highest level for 18 months and that uplift is filtering through to our monthly and rolling price league analysis for a dairy farmer producing 1m litres annually.Table B shows milk prices for July, calculated at high, average and low solids to reflect the impact that differing levels of butterfat and protein have on farmgate milk prices. The values used for each milk quality are outlined in Table 1 on the opposite page.