Treatment of Ichthyophthiriasis in Rainbow Trout and Common Carp with Common and Alternative Therapeutics
| Autor: | T. Weismann, Franz Lahnsteiner |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
endocrine system
Veterinary medicine Carps Time Factors animal structures Virkon animal diseases Sodium chemistry.chemical_element Ciliophora Infections Aquaculture Aquatic Science Cyprinus Fish Diseases chemistry.chemical_compound Common carp Species Specificity Animals Hydrogen peroxide Hymenostomatida Antiparasitic Agents Dose-Response Relationship Drug biology Ichthyophthirius multifiliis urogenital system business.industry Temperature biology.organism_classification Fishery Treatment Outcome chemistry Oncorhynchus mykiss Rainbow trout business |
| Zdroj: | Journal of Aquatic Animal Health. 19:186-194 |
| ISSN: | 1548-8667 0899-7659 |
| DOI: | 10.1577/h07-002.1 |
| Popis: | The goal of this laboratory study was to provide better knowledge about the treatment of ichthyophthiriasis (causative agent: Ichthyophthirius multifiliis, a ciliate bacteria) in rainbow trout Oncorhynchus mykiss and common carp Cyprinus carpio. The following questions were investigated: (1) the effectiveness of different chemicals (formalin, sodium chloride, hydrogen peroxide, Perotan, Virkon, Aquahumin, Baycox, and Ivomec) and at different concentrations and durations of application, (2) the number of treatments and the time intervals between treatments that were necessary to remove the parasite, and (3) how treatment effectiveness differed between the two species. The most effective treatment was a 37% stock solution of formalin at 110 microL/L of bath water for 1 h in rainbow trout and for 2 h in common carp. Aquahumin (150 microL/L for 2 h) was effective in slightly or moderately infected rainbow trout and at low water temperatures, but it was not effective for common carp. All other tested chemicals were ineffective. With formalin and Aquahumin, five treatments were necessary to remove I. multifiliis infestation. At 10 +/- 1 degrees C, the parasites were eradicated when the treatment was performed at 48-h intervals. At 18 +/- 1 degrees C the infestation was eliminated when treatment was performed at 24-h intervals but not at 48-h intervals. At 25 +/- 1 degrees C, treatment at 24-h intervals was ineffective; however, shorter intervals between treatments might improve treatment efficacy at this temperature. In contrast, the number of treatment repetitions played a minor role, and parasites were eliminated with five treatments in all experiments when the type of chemical and treatment interval were optimal. |
| Databáze: | OpenAIRE |
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