Title: Efficacy of some anthelmintics against the swimbladder nematode anguillicola-crassus of eel anguilla-anguilla under saltwater conditions
Authors: Geets, A ×
Liewes, Ew
Ollevier, Frans #
Issue Date: Jul-1992
Publisher: Inter-research
Series Title: Diseases of aquatic organisms vol:13 issue:2 pages:123-128
Abstract: Six anthelmintic drugs, Ivermectin, Closantel, Safewormer, Masoten, Oxfendazole and L-Levamisol . HCl, were screened for their efficacy against Anguillicola crassus, a swimbladder nematode of European eel Anguilla anguilla. All experiments were carried out under saltwater conditions. Of the 6 drugs, L-Levamisole . HCl used in a bath treatment gave the most promising results. Evaluation of the curative dose of L-Levamisole . HCl showed that a long-term treatment (6 d) with 20 mg l-1 was far more effective than a short-term treatment (24 h). Dosages lower than 20 mg l-1 showed a lower efficacy against Anguillicola crassus. However, even with a long-term, high-dosage treatment, some recovery of adult nematodes with sublethal damage and/or migration of viable juveniles into the swimbladder lumen could not be excluded. When examined 35 d after treatment, the percentage of mobile adults had increased, while a decrease in percentage of dead worms was noticed compared to values obtained immediately after treatment.
ISSN: 0177-5103
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Ecology, Evolution and Biodiversity Conservation Section
× corresponding author
# (joint) last author

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