Management change required | |
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1. Separation of all ELISA positive cows 1 month before and during calving. | |
2. No calves to be retained as heifer replacements if born to ELISA positive dams. | |
3. Colostrum and milk from all ELISA positive dams not to be fed to any replacement calves. | |
4. Calves to be housed in calf pens and physically separated from cows within 24 h of birth. | |
5. Calves to be grazed on paddocks to which adult cows (≥ 2 years) have not had access. | |
6. All cows to be annually blood tested in the autumn using a modified ELISA test with fPCR used to confirm the status of ELISA positive animals. | |
7. All animals testing high for the ELISA or fPCR to be culled from the herd before the end of the current lactation. | |
8. As many as possible additional but lower grade ELISA and fPCR positive cows to be included on the herd’s annual cull list. |