Effect of starvation periods and compensatory growth on growth indices and body composition in fingerling common carp (Cypinus carpio)

This test was done in summer 2012 in research work lab of Azadshahr Azad University to long 12 week. 162 small fish C. Carpio by average weight 25 ± 3g, density of 18 in the 1000 liter tank were distributed and have feed. In whole duration nurture small fishes nourished duration test carried by food constant Testes were done in 3 treatment and 3 repeat to the following: control: twice in day nourish, treatment 1: two week nourishment+ one week starve, treatment 2: one week nourishment+ two week starve, rate nourish on the basis of 8% weight of total body of small fishes one repeat on. In growth period, growth parameters were studied. Results showed that between body weights of studied fish statistical difference of (p< 0.05). Small fishes in control that nourished have more increase of weight. Statistical differences were observed between treatments in body rate increase, final weight, coefficient of of food, coefficient of special growth. But best coefficient food change relevance to treatment that one week nourish and 2 week starved, in carcass analysis more protein and lest fat were relevance to treatment 3. Finally, starvation will have a significant effect on the body weight of the Cyprinus carpio, but under the test conditions, including changing water through siphoning, aerating by air pump and indoor saloon, feeding to achieve the best growth rate will be recommended.