The Ministry for Primary Industries says New Zealand is getting closer to the eradication of Mycoplasma Bovis.
Ten properties in Canterbury are currently infected with the cattle disease, including two Lincoln University research farms.
The Ministry is working through depopulation plans with the two research farms, but final cull numbers haven't been determined.
It's also working with neighbouring properties, and those connected by animal movements to ensure the disease hasn't spread.
Despite this, MPI says there are signifcantly lower numbers of Mycoplasma Bovis infections now than in previous years.