The operational requirements of Phase 2 are that members of the National Johne's Management Plan (NJMP) require their associated farmers to obtain a signed declaration by a BCVA Accredited Johne’s Veterinary Adviser
that they will be implementing one of the six control strategies
specified by the NJMP.
For the first year of a farm completing the National Johne's Management Plan requirements the declaration confirms that the farmer has:
i. undertaken to assess their risks and herd status within the last 12 months and,
ii. adopted the written Johne’s management plan put in place in agreement with their BCVA Accredited Johne’s Advisor.
The plan should be reviewed annually.
Year 2 onwards
For farms who have completed the initial requirement of the National Johne's Management Plan, the declaration confirms that the farmer:
i. has reassessed their risk and status within the last 12 months and reviewed their Johne’s management plan with their BCVA Accredited Johne’s Advisor; and
ii. that the necessary management protocols, equipment, husbandry and resources are being implemented to adhere to this plan
The objective of this declaration is to confirm that the plan has been reviewed and that the farmer is implementing the correct protocols to adhere to the plan.
Only vets that have undergone the BCVA training programme
are permitted to sign declarations, to find your nearest BCVA accredited Johne's advisor click here
To satisfy the requirements of the NJMP, there are three steps that should be completed on-farm with a BCVA Accredited Johne's Veterinary Advisory. These are:
1. Know your Johne's disease risks
While it is calculated that a third of dairy herds do not have Johne’s disease present on farm, a robust plan to keep the disease out – or manage the infection if present needs to be worked up with a BAJVA.
If your risks of Johne’s disease are high, it is important that you reduce them by adopting an effective control programme and monitor carefully for infection within your herd.
2. Know your Johne's disease status
Testing will help determine your herd’s Johne’s disease status’ as part of your control programme.
Risk based (quarterly testing
Suitable for herds of moderate to high prevalence who are not able to dedicate the resources or have the facilities required for Improved Farm Management on all cows calving. Frequent testing allows the creation of a low risk group (green cows, typically 90% of the herd) which are managed normally and a high risk group (red and amber cows) of cows which are separated at drying off into a dedicated segregation area to prevent contamination of green cows and green cow areas. Test results are also used to inform breeding and culling decisions.
This programme is especially suited to herds which undertake milk recording as the Johne’s testing can be carried out on the milk recording samples. The overall cost of the program may be offset by savings on labour and higher cull prices for cows identified early in the infection cycle.
Single test (Pre Dry off)
This is a less rigorous testing programme, with just a single test performed before drying off. This result is used to segregate test positive cows at drying off into a dedicated area away from the low risk cows.
The single test will not be as sensitive as repeated testing and as such not all infectious animals may be identified allowing some to enter the calving area and spread the disease.
This option may be suitable for block calving herds with low prevalence which can test all of the animals in one session pre dry off. It is more challenging to ensure timely testing in a year round calving herd with cows going dry every month. Adequate resources are needed to ensure cows are sampled at the appropriate time.
Double test (Pre Dry off and Pre Breeding)
This increased testing provides greater sensitivity than the single test and also provides a test result pre breeding to allow breeding decisions to be made. This option may be suitable for block calving herds with low to medium prevalence.
3. Create a written Johne's disease management plan
This should be kept with/included within your herd health plan.