Ballarat Health Services began screening 200 Luv-A-Duck employees in Nhill on Monday.

In a statement on social media on Monday, the West Wimmera Health Service said there was no suggestion any employee had the virus.

"Given the high-risk nature of abattoirs and meat processing plants, frequent testing is required," the health service said.

Luv-A-Duck chief executive James Thompson said on Tuesday, said all facilities in Victoria needed to be tested by no later than Tuesday, August 25.

"Our plant staff are being tested today, and our grower and breeder partners and livestock personnel on Tuesday," he said.

RELATED: Luv-A-Duck staff cuts prompted by pandemic

"The site should be finished Monday or Tuesday morning, and there will be testing done off-site at the Nhill dental clinic on Tuesday.

Mr Thompson said after the first lockdowns began on March 19, Luv-A-Duck lost 70 per cent of its market. Around 30 staff had to be stood down.

"As a result of that, we had to plan for significant wind-down in placement of ducks out in the field," he said. "When we did that, in May, we had to decrease our production processing of ducks from five down to three days a week," he said.

"As restrictions have started to ease around the country, we have had enough confidence to plan for some stepped increases in processing numbers. Our stepped increase started on July 31, and we have plans for another on August 31, which will see our staff return to five days a week daily processing at our Nhill plant."

He said this included bringing stood down staff back to the plant.

Update Wednesday 10am:

Ballarat Health Services will conduct asymptomatic testing in Ararat today and on Thursday.

Ararat Meat Exports managing director Michael Stapleton has confirmed the service had been in contact.

"We are having our entire site tested," he said.

"They are on site today testing everyone as part of the state government's conditions on meat processing plants being allowed to continue operating."

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Mr Stapleton said there was no suggestion there was a coronavirus case within the facility's workforce or premises.

"It's just a precaution to avoid any outbreaks," he said.

The privately-owned business directly employs 350 people. Like all other Victorian abattoirs Ararat Meat Exports is operating at two thirds of production. Employees must wear full personal protective equipment, including gloves, gowns, masks and shields, and also have to work split shifts.

The Ararat Advertiser has contacted Luv-A-Duck's Nhill poultry abattoir for comment.

Almost 400 people will be tested for coronavirus at the Wimmera Health Care Group and Stawell Regional Health testing clinic throughout the week, while 500 staff at Stawell's Frew Group abattoir took part in a two-day testing blitz on Monday and Tuesday.

WHCG chief executive Catherine Morley said while the number of people testing at the drive-through clinic has dropped considerably, overall rates remain solid.

Tuesday 7pm: Ballarat Health Services will place a Rapid Response Testing Team in the Grampians and Wimmera over the coming weeks.

At its Tuesday update, the service announced its RRTT would be on the road, commencing in Ararat and Nhill.

"Meat processing industries are identified as at-risk environments due to the close proximity of workers to one another, and the cold work environment," it said in a statement.

BHS said the teams could quickly set up mobile COVID-19 testing clinics.

"In the past this has included onsite at local businesses and for school staff prior to onsite learning going back last term," it said.

"Our RRTT can be allocated to industries or locations throughout the Grampians region that the Department of Health and Human Services determines are most at risk of exposure or spread of an outbreak, and has the capacity to respond to testing requirements across the region within a six-hour window."

READ MORE: What you need to know about, and where to get tested for, coronavirus in the Grampians

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