New season lamb numbers at physical markets in WA so far during September have declined a whopping 46 per cent on the same time last year, according to Meat and Livestock Australia.
MLA says the move out of sheep enterprises, the late autumn break and late start to the joining season contributed to the lower yardings over the period.
The recent cool, wet weather has also hindered growth rates with producers opting to hold onto lambs in an attempt to get them to heavier weights.
MLA reports that the WA trade lamb indicator finished last Thursday at 414¢/kg (carcase weight), 62¢ below the same time last week, but 120¢/kg above the same time last year.
The weaker demand from buyers at physical markets led to the cheaper trend.
Sheep supplies in WA remain very tight, with numbers falling 35pc on last week and 44pc on the same week last year.
Only one live exporter operated at physical markets last week.
The WA mutton indicator settled at 244¢/kg.