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What is it?


A quarterly 30 cow screen for Johne’s disease.

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Why should you do it?

Heifers lowdownJohne’s disease may be present in your herd despite not seeing any clinical signs.

It is a disease that causes considerable economic losses through reduced productivity due to increased SCC and mastitis, lameness, poor yields all of which lead to premature culling.

This service is more suited to herds that do not have an active infection of Johne’s but are at risk of the disease entering the herd. 

What are the benefits?

By testing 30 cows that are more likely to have Johne’s rather than the whole herd, active infection can be found if present without the costs associated with whole herd testing. It will help monitor the efficacy of your biosecurity measures and depending on the results, determine if a whole herd test is required.

What is involved?

Thirty cows will automatically be selected for testing on a quarterly basis using your milk records. You will need to let us know of any TB tests as there needs to be a 42 day gap after a TB test and testing for Johne’s. 

What happens next?

Your Area Field Manager can discuss this testing service with you, how it will work with your milk recording samples and provide you with a quote. Costs of testing are charged on a per cow basis and invoiced monthly but will vary depending on your herd size.

Your vet should be consulted and if they have any queries, we have two in-house vets who can offer support if needed.

For full details of our HerdTracker service, please visit the NML website or contact Customer Services.

HerdTracker service