12/09/2025
Coughing Calves
I recently viewed some beef weaner heifers on a property that is very much focused on grazing young stock. As the calves were being yarded I noted a number appeared to be coughing. Nothing dramatic, just a continual cough here and there.
This was almost certainly as a result of lungworm infection. The weaners looked ‘okay’ but according to the owner, weren’t quite as good as normal. Drenching with Dectomax, which is very effective against lungworm, was recommended and the coughing ceased within a week.
Most ‘mectin’ drenches are still highly effective against lungworm, so where young cattle are drenched regularly we don’t tend to see too many problems. However, where drenching programmes are lax or large numbers of young cattle are run all year (ie spring calves followed by autumn calves) lungworm challenges can occur.
Keep your ears or hearing aids tuned for coughing calves and if you suspect problems give us a call for advice.