Dairy product prices fell at the Global Dairy Trade auction, led by unexpected slides in whole milk powder and butter.
The GDT price index slipped 0.7 percent from the previous auction two weeks ago. The average price was US$2,980 a tonne, compared with US$3,044 a tonne two weeks ago.
Some 38,811 tonnes of product was sold, up from 32,041 tonnes two weeks ago.
Whole milk powder fell 2.2 percent to US$2,821 a tonne.
"There was a greater volume of whole milk powder sold at this event," AgriHQ dairy analyst Amy Castleton said in a note, adding that it marked a 33 percent increase from the August 21 event and 29 percent climb from the year-earlier event on September 5, 2017.
Read more: Fonterra's Mark Robinson on a 'disappointing' GDT result
At the latest GDT auction, butter dropped 2.8 percent to US$4,271 a tonne.