Hi. What other fluke and workers would be good to useI'd almost guarantee that weaned calves will need worming if they haven't been done before but should really test them first. Saying that I didn't test mine and wormed them today just because they did look wormy
Fluke them after 6 weeks housing. old cows won't need anything else if they even need that they might not have fluke at all.
There are better and cheaper combination fluke and wormers available than closamectin.