Dairy product prices declined at the Global Dairy Trade auction, easing for the fourth time in five auctions.
The GDT price index fell 0.4 per cent from the previous auction two weeks ago to US$3,339. Some 32,260 tonnes of product was sold, down from 32,768 tonnes at the previous auction.
Whole milk powder slid 0.6 per cent to US$3,143 a tonne.
Lactose dropped 4.9 per cent to US$747 a tonne, while butter fell 1.3 per cent to US$5,735 a tonne, and anhydrous milk fat slipped 1.2 per cent to US$6,199 a tonne.
"Offer volumes of milkfats are set to decline slightly over coming months, while Fonterra directs milk into added-value products and whole milk powder over New Zealand's peak milk-producing months," AgriHQ dairy analyst Susan Kilsby said in a note. "However buyers haven't taken notice of this yet and are relying on more fat being available from New Zealand as it lifts its milk production this season."