Vol.15, No. 1,January2016
Evaluation of the effects of different concentrations of neutral anolyte on fungal infected eggs in rainbow trout (Oncorhynchus mykiss) in comparison with green malachite
Description:1-Department of Aquatic Animal Health& Disease, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran. 2-Caspian Sea Ecology Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization. 3-Cold water Fishes Research Center (CFRC), Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, P. O. Box: 46815-467 Tonekabon, Iran *Corresponding author's email: isharifpour@yahoo.com
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Abstract
The objective of this study was to determine the effect of different concentrations of anolyte on saprolegniasis in comparison with green malachite in rainbow trout hatcheries, in the northern part of Iran, Tonekabon. Nearly 5000 green eggs ofOncorhynchus mykiss (equivalent to 300 g) were obtained from a private farm in the north of Iran. The study was designed in 5 treatments, 0.25, 0.5, 25, 30 and 100 ppm of neutral anolyte and 2 ppm of green malachite and two controls including positive control, meaning that the green eggs were purposely infected with saprolegnia but without any disinfectant, and negative control, which was implied to as the untreated group, all in triplicate. There was no significant difference (α>0.05) in hatchability percent between 2 ppm of green malachite and the group treated with 0.25 ppm of neutral anolyte, contrary to other anolyte concentrations. It is concluded that constant use of 0.25 ppm of neutral electrolyzed oxidized water (NEOW) is a more effective anti-fungal solution with the least side effects in comparison with 2 ppm of green malachite.
Keywords: Neutral anolyte, Fungal infection, Saprolegnia, Green malachite, Rainbow trout(Oncorhynchus mykiss)
Author:Sharifpour I.1*; Kakoolaki S.1; Mehrabi M.R.1; Gheyasi M.2; Najjar Lashkari S.3
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