Useful Resources for Dairy Farmers

Useful Resources for Dairy Farmers

Johne’s Disease

Johne’s Disease (also known as paratuberculosis or JD) is caused by a bacterial infection of the gut in cattle and other ruminants with Mycobacterium avium paratuberculosis (Johne’s bacteria or MAP). No cure is available and the condition is eventually fatal. However, there are ways to manage this disease. Dairy NZ has produced a useful guide that contains management tools to combat Johne’s Disease and protect against the spread of Johne’s infection in the herd.
Download the Dairy NZ Guide to Johne’s Disease Management

Laboratory testing for Johne’s Disease

Diary NZ has a helpful guide which provides information on laboratory testing for Johne’s disease for both veterinarians and farmers.

“A dairy herd Johne’s management plan must reduce exposure and transmission risks:

  • Develop a whole herd health plan that includes JD testing
  • Screen all cows annually for Johne’s before calving
  • Cull all test-positive cows ASAP and calve only test-negative cows
  • If unable to cull, tag positive cows and calve separately. Cull the calves. Discard colostrum.
  • Avoid carry-over cows or test before carrying over (and before calving).
  • Consult test providers for expert advice to interpret results.”

Download the complete PDF here Johne’s Disease – Laboratory Testing

Johne’s Disease Research Consortium & Advisory Group

Have a number of resources on how to reduce the impact of Johne’s Disease in New Zealand:

Most Recent Posts

DRL Offers Heifer Johne’s Testing

MAY 2023 HEIFER TESTING PROMOTION!   Use Paralisa™ testing to detect subclinical Johne’s infections earlier*. After 3 years of research, including over 8,000 animals, we are now offering our combined Paralisa™ + absorbed ELISA testing for heifers 18 months and older. Ask your animal health provider about incorporating DRL’s Paralisa™ …[Read more]

Johne’s Disease Diagnosis in New Zealand: An Update

DRL is an industry leader in diagnostic services for Johne’s disease in New Zealand, and the inhouse Johne’s diagnostic tool, the Paralisa™ test, has proven its strength in combination with commercially available ELISA tests.  Increasing test sensitivity allows farmers to identify animals in the earlier states of disesase (subclinical), and …[Read more]

A Hallmark of Quality

Our faecal PCR test hallmark of quality. Every year, the DRL laboratory participates in blinded proficiency panel testing for Johne’s disease, administered through the US National Veterinary Services Laboratory, Ames, Iowa as part of an ongoing international accreditation programme for diagnostic laboratories. These proficiency panels include serum, milk and faecal …[Read more]