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DRENCHING gun injuries are well recognised in sheep and have been clearly shown to pose a threat to the health and welfare of sheep in the UK (Harwood and Hepple 2011). In cattle, liver fluke infection is associated with the widespread use of anthelmintic products to reduce the impact of infection on production, particularly in dairy cattle (Howell and others 2015). We wish to report on three cases of dosing gun injury, with fatal outcome, for three dairy farms where cattle were treated for liver fluke.
On the first farm, three cows in a 130-cow dairy herd had died in a week, with the first two to die showing reduced milk yield and some coughing. One of these was examined at the knacker's yard and had a large amount of blood in its ‘stomach’. Coughed up blood had been noted on …