Read more about Mycoplasma bovis here.
Last year, the M. bovis eradication programme pushed the year-on-year overall cow cull during the second quarter, traditionally the dairy industry's peak cull period, up from 470,000 to more than 537,000 cows.
Those numbers could be as high again this year, according to Meat Industry Association (MIA) chief executive Tim Ritchie.
Ritchie said the majority of stock under the MPI eradication programme were going to meat processors and were being processed as normal, with ''smaller batches'' for testing purposes.
''MPI is dealing directly with the meat processors on a commercial basis for the cull, though we provide an element of hygiene, for example with transport to ensure that livestock trucks that have transported cattle from infected farms are washed and cleaned.''
So far, 1125 claims for compensation had been received by MPI and a total of $77.1m has been paid out to 795 of those.
Operational costs had amounted to about $155m to date.
Ritchie said depopulation of herds in which M. bovis was detected was only expected to have a nominal impact on New Zealand beef production.
''It also doesn't affect the safety or quality of New Zealand meat products, either locally or for our export markets. It is present in other countries, but we are seeking eradication because of its potential impacts on farm production, animal health and also the relatively low infection rates.''
While those rates have been relatively stable, there were still 224 properties under ''notice of direction'', which restricted the movement of animals and goods off farm or ''active surveillance'', where actual testing for M. bovis had begun.
Of the 173 properties confirmed as having had the disease, 42 remain on the active list, including six in Southland and seven in Otago. Canterbury accounted for 20 properties, of which six were in Ashburton.
''Ultimately, it's in all our interests to ensure that the disease is under control,'' Ritchie said.
