Effects of sodium chloride, hydrogen peroxide and malachite green on fungal infection in rainbow trout eggs

Abstract

Two chemicals, sodium chloride and hydrogen peroxide were investigated for their efficacies as fungal control agents and compared with malachite green, fungal a control agent commonly used in hatcheries. No significant differences in results were seen between treatment with 1000 μ g/ml hydrogen peroxide and that with 2 μ g/ml malachite green in terms of the number of eggs infected and the hatching rate. When compared with the other two chemicals, sodium chloride at 25 ppt showed less effectiveness for fungal control.