Whole milk powder slumped 6.7 per cent to US$3,099 a tonne, its lowest since September, having reached a three-year high in the previous auction.
Skim milk powder shed 6.3 per cent to US$2,867 a tonne, from a five-year high two weeks ago.
Butter fell 2.4 per cent to US$3,886 a tonne. Anhydrous milk fat slipped 0.3 per cent to US$4,866 a tonne.
Meanwhile, lactose gained 0.6 per cent to US$787 a tonne, while cheddar climbed 1.7 per cent to US$3,869 a tonne, and rennet casein rallied 2.6 per cent to US$8,260 a tonne.
Buttermilk powder was not offered at this event. For sweet whey powder, no product was offered or sold, or no price was published for the last event.
There were 142 winning bidders out of 190 participating at the 18-round auction. The number of registered bidders was 517, up from 516 at the previous auction.