Dowling AFHowe LLawrence KPomroy WScott I2022-06-0720212022-06-0720212021 Conference Proceedings of the Sheep and Beef Cattle Veterinarians and the Deer Veterinarians Branches of the NZVA, 2021, pp. 39 - 40 (2)https://hdl.handle.net/10179/17161A study of all herds (n=430) supplying Westland Milk Co-op were tested with an IDEXX Bulk Milk Elisa (BME) (IDEXX Fasciolosis Verification, IDEXX Europe BV, Hoofdorp, The Netherlands) which characterises herds into intensities of infection (Nil, Low, Medium, Strong). These equate to liver fluke infection prevalence of 0%, <20%, 20 – 50%, >50% within the sampled herd. Overall, the distribution of herds as analysed in the autumn of 2017 was Nil=31%, Low=11%, Medium=14%, Strong=43%. It was notable that some regions had much higher levels of infection than others.39 - 40 (2)(c) The author/sconference453634Massey_Dark