Cull hard for those issues.
In cattle reliance on parasitics has allowed susceptible animals to be carried with the herd. If you treat them like any other cullable issue instead of patching it with drugs, you can remove carrier animals and strengthen the herds ability to manage on their own.
In cattle reliance on parasitics has allowed susceptible animals to be carried with the herd. If you treat them like any other cullable issue instead of patching it with drugs, you can remove carrier animals and strengthen the herds ability to manage on their own.