As cattle come in off grass, how much of your parasite control is down to guesswork? Estimated weights, a dosing gun that hasn’t been checked since last year, or a wormer chosen out of habit can all cost you in performance this winter and in resistance down the line. In Chanelle Pharma’s ‘From the Field’ winter housing series, Longford vet Donagh McDonnell, Longford beef farmer Shane Leavy, and UCD parasitologist Darren McDonald discuss how to plan your parasite control and keep cattle...