ASB has trimmed its milk price forecast by 25c to $6.25c on the back of another fall in global dairy prices.
This week, prices dropped 0.3 per cent and overall prices have now fallen in nine out of the last 10 auctions - down 15.9 per cent over that period.
Individual product results were more mixed: key whole milk powder dipped 0.9 per cent while milk fat prices were firm as butter prices rose 2.4 per cent. Skim milk powder prices were unchanged.
The recent auction falls came as New Zealand production continued to show significant strength, ASB senior rural economist Nathan Penny said.
Season-to-date production was more than 5 per cent ahead of the same time last season while Fonterra had lifted its forecast milk collections growth forecast from 1.3 per cent to 3 per cent.