A field study to evaluate the efficacy of fenbendazole on 9 stud farms
Varady, M.(Slovenska Akademia Vied, Kosice (Slovak Republic). Parazitologicky Ustav)E-mail:[email protected] | Konigova, A.(Slovenska Akademia Vied, Kosice (Slovak Republic). Parazitologicky Ustav) | Corba, J.(Slovenska Akademia Vied, Kosice (Slovak Republic). Parazitologicky Ustav)
A study was conducted to determine the efficiency of fenbendazole, a benzimidazole anthelmintic, on horse farms in Slovakia. Nine stud farms with a total number of 80 horses were selected for the faecal egg count reduction (FECR) test. Resistance was assumed if egg count reduction was less than 90%. A low level of benzimidazole resistance was found on three farms (between 84.4 and 89.0%). On the remaining farms the results of the FECR test indicated substantial reduction in faecal egg output after treatment (between 92.5 and 99.4%). Larval identification before treatment revealed Cyathostominea larvae as being predominant.
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