Monday, 05 February 2018 13:55

M. bovis farm infections hit 21

Written by  Nigel Malthus
MPI’s David Yard. MPI’s David Yard.

The total number of farms infected with the cattle disease Mycoplasma bovis has reached 21.

Another farm was confirmed positive in South Canterbury/North Otago on January 31, two days after the announcement of two positives, one in the Waimate district and one in Southland.

MPI response coordinator David Yard said the 21st infected farm was associated with the original cluster.

The disease was first identified last July on a Van Leeuwen Dairy Group farm near Oamaru.

“It’s fair to say the vast majority of farms, we’ve publicly said, are clearly linked to the two bigger clusters we have, in Oamaru and Southland,” Yard says.

MPI still hopes to eradicate the disease, but expects to find more infected farms because its spread still seems linked to animal movements.

“That’s where our tracing activities pay dividends, because we’re going to each farm and finding out who they’ve sold animals to. And without fail every farm we’ve identified has been one of those we’ve just chased up.”

However, MPI wants to identify any missed clusters or pockets, hence its national milk surveillance programme intended to test 12,000 farms nationwide. This has begun in the Ashburton district and will start in the central region in the first week of February and four more regions one week later, Yard says.

The results so far have been “quite promising,” he told Rural News

MPI will immediately tell any farmer of a positive test on his herd; or where the disease is not detected the farmer will be notified at the end of the programme.

“To give you an assurance, to date we haven’t found any positives from this national testing. All these new positives we’re getting are a result of our tracing programme.”

Yard was speaking on the day when all 412 dairy farms in the Ashburton district, between the Rakaia and Rangitata rivers, were due to have milk sampled from any off-colour cows in the third and final phase of that district’s testing programme. They had taken similar samples a fortnight before, and bulk milk sampling was done before that.

Meanwhile, the culling of animals from infected herds has been put on hold, Yard says.

“Obviously to cull a person’s herd has a significant impact on their farming operation and would almost be life-shattering. 

“So we want to make sure we are certain it’s the right thing to do.

“Clearly if the milk surveillance programme shows we have infection right across the country then maybe culling won’t be the right option. We’re using this opportunity to take a deep breath, wait for the results of the national milk surveillance, and then we’ll decide whether that is the appropriate way to go.”

Yard says all potentially infected properties remain in lockdown under restricted place notices and present no greater risk than any other farm.

“They will stay that way until we’ve got the results to show where the level of infection is across the country.”

 

More like this

Help available for flood-hit farmers

The chair of the Otago Rural Support Trust, Tom Pinckney, says he believes that they will be especially busy in the coming months as the enormity of the floods hit home.

Getting Onside

Time matters in a biosecurity response, says Ryan Higgs, Chief Executive of biosecurity technology company Onside.

M. bovis plan on track

New Zealand's world-first Mycoplasma bovis eradication programme is making great strides but this isn't the time for complacency, says Ospri.

Featured

Farmer honoured with New Zealand Order of Merit

Hauraki Coromandel farmer Keith Trembath was recently awarded the title of Member of the New Zealand Order of Merit (MNZM) in recognition of his contributions to public service, agriculture, and education.

RSE workers get immunised

Over 1,000 Recognised Seasonal Employer (RSE) workers in the Hawke’s Bay have now been immunised against measles.

National

Dairy buoyant

The Rabobank Rural Confidence Survey found farmers' expectations for their own business operations had also improved, with the net reading…

Farmer confidence flowing back

Confidence is flowing back into the farming sector on the back of higher dairy and meat prices, easing interest rates…

Machinery & Products

Batten Buddy - cleverly simple

Stopping livestock from escaping their environment is a “must do” for any farmers or landowners and at times can seem…

U10 Pro Highland a step up

A few weeks after driving the CF MOTO U10 Pro ‘entry level’ model, we’ve had a chance to test the…

LC70 - A no-nonsense work horse

As most vehicle manufacturers are designing, producing and delivering machines with features that would take us into the next decade,…

» Latest Print Issues Online

The Hound

Dark ages

OPINION: Before we all let The Green Party have at it with their 'bold' emissions reduction plan, the Hound thought…

Rhymes with?

OPINION: The Feds' latest banking survey shows that bankers are even less popular with farmers than they used to be,…

» Connect with Rural News

» eNewsletter

Subscribe to our weekly newsletter