The Ministry of Primary Industries has ordered around 4,000 cows from seven farms to be culled to prevent the spread of Mycoplasma bovis:
The Ministry for Primary Industries is moving forward with control measures to prevent further spread of the cattle disease Mycoplasma bovis, with plans being developed with farmers to cull animals from the known infected farms.
“Since the start of this response in late July, we’ve carried out tens of thousands of tests of the infected, neighbouring and trace properties as well as district-wide testing in Waimate and Waitaki, and nationwide testing of bulk milk,” says MPI’s Director of Response, Geoff Gwyn.
“The only positive results for the disease have been on 7 infected properties, leading us to be cautiously optimistic that we are dealing with a localised area of infection around Oamaru,” Mr Gwyn says.
“To prevent further spread of the disease, around 4,000 cattle on 5 of the 7 infected properties will need to be culled and a programme put in place to decontaminate the properties and then re-populate the farms. The 2 other properties have had a small number of animals culled already and no cattle remain.
“This whole operation is about managing the disease while keeping our future options open. We want to minimise the risk of further spread of the disease. Moving ahead with depopulation of the affected farms will allow them to get back to normal business as soon as it is safe to do so.”
Currently there is no need to remove animals from other farms in the Van Leeuwen group that are under restrictions. Testing of animals on those farms continues and should infection be found, they will be subject to the same measures.
In the coming weeks MPI will be working closely with the animal industry bodies, the Rural Support Trust and others to support the affected farmers.
DairyNZ, Federated Farmers and Beef+Lamb New Zealand support the actions MPI is taking, while at the same time recognising that this is a difficult time for the farmers involved. The industry bodies believe the measures are necessary to protect New Zealand cattle farms against this disease. New Zealand is one of the few countries in the world where Mycoplasma bovis is not endemic, which is why the industry groups support such significant measures to keep it that way.
“The coming weeks will present new challenges and will be tough for these affected farmers. MPI will work with those affected to make the process as straight forward as possible. I’d like to particularly thank the owners, sharemilkers and farm workers involved for their ongoing support, recognising this is a very difficult time for them,” Mr Gwyn says.
“I want to be very clear that this isn’t something that’s going to start tomorrow. This is a big logistical exercise, it needs to be thoroughly planned and co-ordinated and we will be doing it with the farmers who know their businesses best,” Mr Gwyn says.
MPI anticipates the first stage of the process – removing the animals – will start after consultation with affected parties. Most of the cattle will be sent for slaughter in accordance with standard practice.
All premises, transportation vehicles and equipment involved in culling will follow a strict decontamination and disinfection protocol to mitigate the risk of spreading the disease.
Once depopulation is completed, there will be at least a 60 day stand-down period where no cattle will be permitted on the farms. During this time the infected properties will be cleaned and disinfected.
Following this work, the aim will be to get cattle back on the farms as quickly as possible. Surveillance, monitoring and testing will remain in place for a period as a further safeguard.
The affected farmers can apply for compensation for verifiable losses relating to MPI exercising legal powers under the Biosecurity Act.
The disease carries no risk to human health but there is no cure for it. Culling is a drastic step but it has the support of affected farmers and industry groups including DairyNZ:
Dairy farmers around the country will be reassured by the Ministry for Primary Industries (MPI) decision to cull animals on farms infected with the disease Mycoplasma bovis (M. bovis), says DairyNZ chief executive Dr Tim Mackle.
“Since M. bovis was first identified in July farmers have been on high alert and worried about the impact of this disease,” says Dr Mackle.
“DairyNZ is supportive of MPI’s decision to step up control measures by culling these animals. However, we also know that the decision will create heartache for the affected farmers, and our sympathies are with all those involved on-farm.”
Dr Mackle says the decision follows extensive work and testing by MPI, with significant support from DairyNZ and many other agencies. Since the disease was first identified in July over 30,000 tests have been carried out by MPI.
MPI is increasingly confident that infection has not spread outside the primary farming enterprise involved with this outbreak, or any of the other farms also under restricted place notices.
Over the coming weeks there will be continued monitoring and testing in the interests of shutting down this disease in New Zealand.
He says biosecurity is fundamental to the future success of all New Zealand’s primary sectors, dairy included. . .
This is echoed by Beef + Lamb NZ:
. . . James Parsons, chairman of B+LNZ, said: “The decision will obviously have significant implications for the farm businesses and the rural communities affected by this disease outbreak and we wish to see all available support and compensation provided to those affected. We believe these measures are necessary to protect New Zealand cattle farms against this disease.
“New Zealand takes its biosecurity very seriously and is one of the few countries in the world where this disease isn’t endemic, so that’s why the industry is willing to support such significant measures to keep it that way.”
The decision to destroy stock which have been in contact with affected animals is the only option which will ensure peace of mind for the rest of New Zealand’s dairy and beef farmers, Federated Farmers President Katie Milne says.
“We also support the continuation of strict movement controls on the remaining 13 properties that have been placed under Restricted Place Notices.
“These restrictions have significant implications for the people concerned, and all other farmers, so this action is essential to keep the option of eradication on the table.”
M. bovis infected stock can be severely affected by the disease, causing pain and suffering.
“We recognise the disease has come at a significant emotional cost to the affected farming families and their animals. The process of culling whole herds will be very stressful for the people concerned.
“But the disease does not respond to treatment and cannot be vaccinated against. Culling is the only logical option to prevent ongoing suffering of the animals.”
From a national perspective, our size, relatively low population and geographic isolation gives us the ability to manage and attempt to eradicate biosecurity incursions, when other countries cannot.
“M. bovis is found in most countries, including Australia, this is a disease that we definitely don’t want and we should seek to eradicate it, if feasible.
“We’ve remained free of many pest animals and pest plants (weeds) and diseases that have decimated other country’s livestock industries. For the sake of our livestock industries and the economy, it’s crucial we act now to ensure this remains the case,” Katie says.
Culling the cattle is necessary but that won’t make it any easier.
When some of our cows tested positive for TB a few years ago we had to cull a few dozen from the herd.
That was hard enough but a very small loss compared with the thousands to be culled on these farms.
MPI will pay compensation based on the commercial value of the stock but that won’t cover the loss of income or the costs of rebuilding the herd. Nor will it replace generations of breeding that went in to building up the herd.