Ảnh hưởng của mật độ, khẩu phần ăn đến tỷ lệ sống và tăng trưởng của cá nhụ - <i>Eleutheronema rhadinum</i> nuôi thuần dưỡng

Abstract

     Eleutheronema rhadinum with the initial size 214.84 ± 0.05g, have the original source caught in the wild were studied to determine the stocking density and diets suitable for fish in captivity. The experiments were carried out at aquaculture area of Hai Minh cooperative, Ha Tinh Province. The result of these experiments indicated that fish culture at density from 1-1.5 fish/m² had significantly higher growth rate from 4.61 to 4.75 g.day^-1 and survival rate from 83.00 -84.67%, compared to fish culture at density 2 fish/m²(P<0.05). On the other hand, for fish to eat with the rations from 5-7 %BW.day^-1 had highest growth oscillate 4.23 - 4.52 g.day^-1 compared to for fish to eat with the rations 3 %BW.day^-1 (P<0.05). However, there was no significant diference in survival rate between treatments (P>0.05). Therefore, fish culture at density from 1-1.5 fish/m² and for fish to eat with the rations from 5-7 %BW.day^-1, which can be use to fish farming in the future.

Keywords: Eleutheronema rhadinum, growth rate, survival rate, density, rations