Some farmers feel they are being unfairly blamed for the spread of Mycoplasma bovis.
The Ministry for Primary Industries has admitted they don't know how some of our farms got the devastating disease.
It blames a lax adherence to the NAIT animal tracking system.
The ministry has confirmed that 143 farms are contaminated or have been cleared of cattle disease and about 87,000 animals have been culled to date, with $54 million in claims paid to farmers.
Frank Peters is an Ashburton farmer who has felt the effects of M.bovis. He told Kate Hawkesby he feels like farmers are shouldering the blame.