A 20% drop in lamb prices has seen them at levels not seen for six years. 

Lamb schedules have fallen in recent weeks, with some companies now offering $6.50 a kilo, down from $8.30 just two seasons ago. 

The drop is being put down to lack of international demand, especially from China. 

Farm consultant Gary Massicks told Mike Hosking that prices were expected to drop around February, but they're here already. 

He says they've hit harder and faster with a fair bit of stock in freezers, and international demand much lower than normal. 

LISTEN ABOVE