Comparison on the effects of Aqua germ, Hydrogen peroxide and Chloramine-T on survival rate of Rainbow Trout (Oncorhynchus mykiss) eggs during incubation period
The effect of aquagerm (1:2500), hydrogen peroxide (500 µl L-1) and chloramine-T (100 mg L-1) were studied on survival of rainbow trout (Oncorhynchus mykiss) eggs. The study was conducted using a complete randomized design with four treatments each in three replicates. A control group was also included in the trial. Significant differences were seen on the survival rate of eggs among the treatments (p<0.05). Using Duncan’s Test the most survival rates of 99.78±0.14, 96.61±0.17% and 99.41±0.16% were obtained using chloramine-T, aquagerm and hydrogen peroxide, respectively. Also, lower survival rate was obtained in control group (p>0.05). Insignificant difference in the egg survival rate between treatments and control group indicates a necessity of health criteria such as improvement of water quality and hatchery facilities after disinfection of eggs and before introducing the eggs into the troughs. Therefore, in case of no dominant fungal infection, eliminating of the chemical substance will reduce cost of larvae production and water pollution.
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