Authors : Wang Hai-Fang, Liu Xia, Su Jun-Hu, Wang Gui-Fang and Wei Yan-Min
Abstract: The effects of starvation for different time (7, 14, 21 and 28 days, respectively) and refeeding on growth and body biochemical composition of Gansu golden trout were investigated. The trial was conducted for 56 days. The results showed that the compensatory growth occurred in refeeding fish after starvation, the body weight of starving 14 days was significantly higher than that of the control (p<0.05), the other groups had no significant differences (p>0.05). After being deprived of food, the content of lipid decreased and moisture increased significantly with the increasing of starvation period (p<0.05), returned to the level in the control group after refeeding except for the content of lipid. The specific growth rate, feeding rate and conversion efficiency in Gansu golden trout during recovery growth higher than that of the control (p<0.05), returned to the level in the control group as the starvation proceeded (p>0.05). It is suggested that over-compensatory growth occurred in group of starving 14 days in the course of recovery growth but the complete compensatory growth occurred in group of starving 7, 21 and 28 days It was due to the higher feeding rate and efficiency of food conversion after refeeding.
Wang Hai-Fang, Liu Xia, Su Jun-Hu, Wang Gui-Fang and Wei Yan-Min, 2013. Effects of Starvation and Subsequent Refeeding on Growth and Biochemical Compositions of Gansu Golden Trout. Journal of Animal and Veterinary Advances, 12: 289-294.