"It's made out to be such a terrible thing, but it's very, very manageable; it's been here for a long time already; it is worldwide," he said. "So, instead of ripping communities apart, sending people broke ... I would say this madness needs to stop.
"It was only before Christmas that they were trying to link all these farms to us, which is absolute rubbish. There's no link whatsoever to us.
"If you really want to stop the spread, you should shut down the saleyards and you should stop every truck from carting all day long without a wash and disinfection — economically that's nearly impossible; practically you can't do that."
The New Zealand Herald reported the ministry was interviewing farmers to fill in gaps in the livestock tracing scheme.
MPI response incident controller David Yard told the Otago Daily Times that the scheme "if used effectively" was "the most useful tool to identify where the disease could be". Yet he said the latest case was identified through bulk milk testing.
"MPI is working with the dairy industry to extend this bulk milk testing ... nationally." Otago Daily Times