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Abstract

Anthelmintic efficacy was investigated in nine sow herds that had been identified with high faecal egg counts in a prevalence study. Faecal samples were collected from a total of 104 individual sows, and analysed using a centrifugal flotation McMaster technique. Samples positive for strongyle eggs were cultured to third stage larvae (L3) for genus identification and then further identified to Oesophagostomum species by sequencing. Following the initial sample collection, the sows were treated with either fenbendazole (FBZ, n = 5 farms) or ivermectin (IVM, n = 4 farms) at the recommended dosing and sampled again 14 days post treatment. Faecal Egg Count Reduction (FECR) was used to determine the treatment efficacy.With respect to Ascaris suum, the anthelmintic treatment was successful (FECR >90%) on the five farms where this parasite was detected, regardless of what drug had been used. In contrast, 4/9 farms were positive for Oesophagostomum spp. post treatment, out of which three had a FECR of

Published in

Veterinary Parasitology: Regional Studies and Reports
2021, volume: 25, article number: 100598
Publisher: ELSEVIER

SLU Authors

Associated SLU-program

AMR: Parasite

UKÄ Subject classification

Clinical Science

Publication identifier

  • DOI: https://doi.org/10.1016/j.vprsr.2021.100598

Permanent link to this page (URI)

https://res.slu.se/id/publ/123239