An Abattoir Survey to Determine the Population Profile in the Autumn of Fasciola hepatica in Condemned Bovine Livers from Ireland and the United Kingdom

摘要

a study was conducted in three abattoirs, two in the United Kingdom and one in Ireland in the autumn of 2010 in order to determine the numbers of F hepatica in condemned bovine livers, and to classify the parasite stages present based on their length.The grazing and anthelmintic treatment history of the cattle sampled was unknown.In total, 126 condemned livers were processed, and of these, 108 had evidence of active infection with F hepatica, of which the majority were in the late immature or adult stages. Only a small proportion (<5%) were early immature. The weather patterns in2010 and estimated risk of fasciolosis in the UK and Ireland did not indicate that the year was atypical, so the observations that adult fluke were the dominant age class in the fluke population at this time should be included in the assumptions behindrecom-mendations for the treatment of cattle for fasciolosis at housing.