bruceythom
Well-Known Member
They are supposed to, yes. It's an irradiated dose of lungworm to challenge the immune system of the animal. The animal can't be exposed and needing worming within 2 weeks post booster vaccine. This information needs to be revisited. If you dose early born calves they're shouldn't be a problem with turning them out as normal. đź‘ŤDo they have to get it pre turnout? Haven't heard of vaccine use for years