NZVA urges animal owners to help fight antibiotic resistance through preventative care
Animal owners can help protect life-saving antibiotics from resistant bacteria by keeping their animals healthy, says the New Zealand Veterinary Association.
Matamata Veterinary Services dairy vet Grant Fraser and Bayer NZ North Island territory manager Stacey Waters.
Bayer has improved its antibiotic resistance test in dairy cows, adding four new antibiotic families.
The test is important for preventing the spread of antibiotic resistance to mastitis treatments in cows.
Bayer improved its DairyAntibiogram (DAB) antibiotic resistance test by adding more antibiotics and more concentrations to the list.
Launched last year, DAB involves the testing of bulk milk supply for resistance to antibiotics that treat mastitis. If resistant bacteria are present, then a veterinarian can prescribe a more effective antibiotic.
Following requests from veterinarians, Bayer has broadened the DAB test to include four extra antibiotics – Cefuroxime, Oxytetracycline, Lincomycin and Neomycin -- and at different concentrations. This is in addition to the six antibiotics already tested: Penicillin, Cloxacillin, Ampicillin, Cefazolin, Tylosin and Amoxycillin.
DAB can now assess 10 different antibiotics for resistance and collect twice as much data.
Dairy veterinarian Grant Fraser, of Matamata Veterinary Services, says the DairyAntibiogram has been successful especially for farmers who don’t realise they have an issue.
“We can now adjust usage and get better cure rates; it’s technology that enables us to do our jobs better,” he says.
“It’s helped drive mindset changes with our farmers and simplify treatment plans; we’ve also been able to grow our clinic ancillary services, like in-house cultures, which guide how you apply DAB data and adds value.”
Bayer dairy veterinarian Dr Ray Castle says the upgrade to DAB is important as it now covers all antibiotics used to treat mastitis.
“Mastitis infects 10-20% of the national dairy herd. As a veterinarian, you want to make sure you’re using the right antibiotics in the most responsible and effective way possible, which this improved test will allow.”
Bayer has also made submitting test requests and managing the results easier and faster with the launch of the DairyAntibiogram website (www.dab.bayer.co.nz).
“The original DAB test was paper-based and quite admin-heavy. We’ve now streamlined the test request process by putting everything online, making it cleaner and easier to get right first time,” says Castle.
“A vet can now log in, request a test and view its progress. Once the results are back, the website has a farm summary report tool that assists the vet in making a decision or recommendation on how to manage mastitis and the appropriate treatment to use on a particular farm.
“A personalised farm summary report can be created and all results are stored on the website. Also a farmer can access the website, initiate a DairyAntibiogram test request, select their vet clinic and find out more information.”
About DairyAntibiogram
DairyAntibiogram is a new test that shows how sensitive bacteria are to different mastitis treatments. The test is easy to have done as it is performed on bulk milk samples taken from milk processors.
For more information about DairyAntibiogram, farmers should consult with their veterinarian or visit www.dab.bayer.co.nz
New Zealand's new Special Agricultural Trade Envoy, Horowhenua dairy farmer, company director and former Minister of Agriculture, Nathan Guy says the Free Trade Agreement (FTA) with India is a good deal for the country.
New figures show dairy farmers are not only holding on to their international workforce, but are also supporting those staff to step into higher-skilled roles on farm.
New tractor deliveries for 2025 jumped 10% compared to the previous year, a reflection of the positive primary sector outlook, according to the Tractor and Machinery Association (TAMA).
Entries have opened for two awards in the New Zealand Dairy Industry Awards (NZDIA) programme, aimed at helping young farmers progress to farm ownership.
Federated Farmers has confirmed interim chief executive Mike Siermans to the role.
Registrations are now open for the 2026 Ruralco Golf Classic, with all proceeds from the event set to support the Mid Canterbury Rural Support Trust.

OPINION: If the hand-wringing, cravat and bow-tie wearing commentariat of a left-leaning persuasion had any influence on global markets, we'd…
OPINION: With Winston Peters playing politics with the PM's Indian FTA, all eyes will be on Labour who have the…