Efficacy of Febantel against Gill Monogeneans of Amberjacks II: Field Trial Assessment

Abstract

Field trials were conducted to assess the efficacy of oral febantel (FBT) treatment at the dose of 10 mg/ kg for 5 days against Heteraxine heterocerca and Zeuxapta japonica in Seriola fish. Numbers of gill flukes were checked 1 day before and 3 days after the treatment. In comparison to the control groups, fish given FBT-coated feed showed deworming efficacies of 99.9% to 100%. No mortality and no signs of drug toxicity were observed. These results indicate that in-feed administration of FBT is an effective and practical treatment for gill fluke infections in Seriola aquaculture.