Spring brings more frequent M. bovis milk testing

Spring is the most effective time to undertake additional screening. During this period, heifers join the milking herd, and cattle return from winter grazing, both of which can be a source of infection to a dairy farm. 

Bulk tank milk screening is a key part of New Zealand's M. bovis eradication programme. Regular testing helps identify potential infection early and supports follow-up investigation where required.

For most dairy farms, samples are collected by milk tanker operators during routine milk collection. Non-commercial dairy farms are responsible for providing their own samples.

What are we testing for?

The test looks for antibodies produced by cattle that have been exposed to M. bovis. 
A "detect" result means antibodies have been found in the milk sample, but it does not automatically mean a herd is infected.

If antibodies are detected, we’ll carry out a risk assessment to determine whether further on-farm testing is needed.

Will I receive my results?

We'll only contact farmers if a detect result requires further investigation. If additional testing is needed, our team will be in touch to explain the next steps. 

Testing throughout the season gives us the best chance of detecting infection because factors such as milk production, vat size and the stage of infection can affect test results. 

The latest M. bovis programme statistics are available here: Latest Mycoplasma bovis (M. bovis) programme statistics