But he admitted the ministry could not give anyone "absolute assurance" that cattle would be free of the disease.
"We've got probabilities ... but we cannot give guarantees."
Although Central Otago was not hugely affected by the disease, many Central Otago farmers were interested in how M. bovis would affect biosecurity on their farms.
As part of a nationwide tour, the ministry is holding nearly 80 meetings around the country, informing people of its plans to manage the disease and gathering feedback.
Mr Yard said because no country had attempted to eradicate the disease before like New Zealand was planning, the ministry was "learning as we go along."
"We accept that mistakes have been made and we're learning from our mistakes."
The tour continues in Gore today.