The Country's Andy Thompson said President Katie Milne told him Federated Farmers was originally part of the group.
He asked O'Connor if the Feds would be included at a later date.
"No. The Governance Group is basically the people who are paying", said O'Connor, who explained that Beef + Lamb NZ, DairyNZ and the Government (through MPI), had contributed through levies.
Read more: Independent report to focus on Mycoplasma bovis surge
Although Federated Farmers is not a paid-up member of the governance group, O'Connor told Thompson that members still played an important role in the fight against M. bovis.
"They're very much part of the programme on the ground working with the farmers, and that's what we need".
Federated Farmers had been instrumental in pointing out "blockages" in the way MPI handled Mycoplasma bovis, and the Ministry had fixed them as a result, said O'Connor.
"I want an open flow of information and there's nothing to stop any Federated Farmer member, or the organisation providing input back in to the governance group."
"There's no blocks here."
Also in today's interview: O'Connor discusses the upcoming Zero Carbon bill report and the proposal for a legal cannabis market.