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http://dx.doi.org/10.5657/fas.2002.5.2.141

Treatment of Microcotyle sebastis (Monogenea: Polyopisthocotylea) Infestation with Praziquantel under Commercial Rockfish (Sebastes schlegeli) Culture Conditions  

Kim Chun Soo (Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University)
Cho Jae Bum (Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University)
Ahn Kyoung Jin (Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University)
Lee Jae Il (Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University)
Kim Ki Hong (Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University)
Publication Information
Fisheries and Aquatic Sciences / v.5, no.2, 2002 , pp. 141-143 More about this Journal
Abstract
The treatment efficacy of oral administration of praziquantel against the blood-sucking monogenean Microcotyle sebastis under the commercial rockfish-culture conditions was evaluated. The quantity of praziquantel added to the food was calculated so that the amount of praziquantel ingested daily by fish was 200mg or 400mg/kg body weight (bw). The fish were fed a moist-pelleted fish meal supplemented with praziquantel at an rate of 0 (control), 200 or 400 mg of praziquantel per kg bw, respectively, for 3 times at an interval of 24 h. On 1 day to 8 days after the treatment, 10 fish were taken randomly from each net-pen daily (80 fish in each group in total), and the efficacy of each treatment was confirmed. Abundance of worms were significantly reduced in groups fed praziquantel-supplemented diets. The results clearly demonstrated that feeding the praziquantel-supplemented diet was effective for controlling M. sebastis infestation in practical commercial rockfish-culture systems without imposing any handling stress.
Keywords
Praziquantel; Microcotyle sebastis; Commercial rockfish culture conditions;
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