PIGS will be sold at Midland on a fortnightly basis starting on August 3, if the minimum requirement of stock numbers were registered by close of business yesterday.
Selling agents Primaries needed a minimum of 250 pigs before the sale could go ahead.
Notices were sent to producers last week to notify them of the impending sale.
Speaking at the Australian Pig Breeders Association Annual General Meeting last week, Primaries managing director Trevor Pedler said if the numbers warranted it, sales would be held every two weeks.
Pig sales at Midland were stopped due to drastic decreases in stock numbers over the past years.
Rallying by small pig producers, who prefer the auction system to direct sales, saw sales re-commence on a monthly basis under the hammer of Primaries.
Midland saleyard manager, the WA Meat Industry Authority (WAMIA), agreed to continue sales on the condition that the minimum numbers of pigs were registered.
WAMIA will run fortnightly sales with a minimum 200 pigs, but if numbers deteriorate sales will return on a monthly basis.
"We have the authority to go fortnightly, but we need to have enough pigs," Mr Pedler said.
"We can't operate on an unviable number of pigs."
Mr Pedler said there had been problems with 100 more pig nominations than those coming forward on sale day.
"The facility is there for a fortnightly sale, but we need to have enough pigs," he said.
"We are happy providing the service, and we want it to succeed, but at the end of the day it is up to producers to make it succeed."
Mr Pedler said Primaries was in for the long haul and not the short term.
The AGM had culminated dramatically when WA Pork Producers Association (WAPPA) chief executive officer Russell Cox and president Graeme Dent made an unannounced entrance.
Mr Dent called for unity between the two organisations so they could work together for the benefit of the industry.
He said sow herd numbers were dwindling, with the present 30,000-31,000 head not enough to supply local markets.
"If we don't work together now ñ we are gone," Mr Dent said.
WAPPA and the APBA have long disagreed over whether the pig selling complex at Midland should continue.
WAPPA believes the dwindling number of pigs through the auction system and the increasing emphasis on quality assurance (QA) systems did not warrant the use of the saleyards. Instead they prefer pigs to be sold direct.