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Experimental Control of Metacercariae of the Yellow Grub Clinostomum marginatum in Channel Catfish
Author(s) -
Lorio Wendell J.
Publication year - 1989
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1577/1548-8667(1989)001<0269:ecomot>2.3.co;2
Subject(s) - catfish , ictalurus , ivermectin , biology , flesh , fishery , veterinary medicine , fish <actinopterygii> , zoology , toxicology , medicine
Metacercariae of yellow grub Clinostomum marginatum in the flesh of farm‐raised channel catfish Ictalurus punctatus pose a potential marketing problem to fish farmers. Infected fish may not be marketable. Three compounds were tested as possible control agents. Droncit (praziquantel) and Masoten (trichlorfon) were used separately as a bath treatment. Droncit and ivermectin were injected into the musculature to control yellow grub metacercariae. The two treatment rates were 0.65 mg/L plus 15 mg/kg offish as a bath treatment and 25 mg/kg offish as an injected treatment for Droncit. Masoten was treated at a rate of 2 mg/L as a bath treatment and ivermectin (1% solution) was injected at a rate of 0.022 mL/kg. Droncit significantly reduced metacercariae in both bath and injection treatments. Ivermectin also significantly reduced the number of metacercariae, but was not as effective as Droncit. Masoten was ineffective. More study is needed to obtain dosage rates for Droncit and ivermectin that would eliminate yellow grub metacercariae from the flesh of channel catfish.