The effect of phenoxyethanol and hunger period on stocking density in the transporting of goldfish (Carassius auratus)

In this study, the optimum dose of phenoxyethonol in juvenile goldfish (3.87cm and 4.05 g) between 30 minutes and 15 hours application was determined. In addition, the effects of phenoxyethanol and starvation time on the fish were determined in the transport of goldfish in 1/4 water and 3/4 oxygen compressed nylon bags for 15 hours. The anesthesia time of the fish was between 3 and 11 minutes depending on the dose and the exit time from the anesthesia was between 5 and 15 minutes. The anesthetic effect of phenoxyethanol on fish started from the dose of 100 µl / L. Suitable doses of phenoxyethanol for deep anesthesia are 250 µl / L for 30 minutes and 200 µl / L for 15 hours. Starving the fish in nylon bags for 4 days provided a higher storage opportunity than fasting for 2 days (P <0.00), but phenoxyethanol application to the transport water had no effect (P> 0.05). There was no interaction between starvation time, anesthetic administration and stocking rates (P> 0.05). 100%, 98.33 and 91.87% survival rates were determined in 40, 60 and 80 pcs / L stocking conditions of oxygen fished nylon bags which were starved for 4 days without using phenoxyethanol. When the number of fish to be transported in mass and survival rate are taken together, the optimal stocking rate for juvenile goldfish is 60 fish per liter.