[Infusoria – causative agents of ectoparasitic diseases of fish and treatment against them]
2008
Skurat, Eh.K. | Grebneva, E.I. | Degtyarik, S.M. | Asadchaya, R.L. | Benetskaya, N.A. | Govor, T.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus). Institute for Fish Industry
The results of investigations into the epizootic situation on ectoparasitic diseases of fish, which were carried out on 29 lakes, at 17 fish - farms, in 4 reservoirs and in 3 rivers during 2003 – 2008, are presented. The characteristics of causative agents, the analysis of their spread in the reservoirs of Belarus, and a review of modern methods of treatment against ectoparasites are presented. The ectoparasites are found in 26 lakes, 4 reservoirs, Soz River and at 17 fish - farms. The ectoparasites are present in natural reservoirs as carrier and are not dangerous for fish (invasion extensiveness is not more than 20%, intensity – 1 – 2 parasite/field of microscope vision). If they get into fish - farms, they will able to cause hard diseases with the fish mortality. The compound invasion of Chilodonella, Ichthyophthirius, and Trichodina is often observed in pond fish, that is way, it is recommended to apply treatment measures with consideration of the presence of the ectoparasitic complex. These measures include the application of new preparations against ectoparasitic diseases of fish such as Cheledum, Ectocide, and Iodinol having high treatment and economic effectiveness in production conditions
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