Effect of spirulina and clove powder on growth performance and carcass composition in common carp fingerlings (Cyprinus carpio)

In this study to investigate effects of Spirulina and clove powder on growth performance and carcass composition, fingerlings of common carp (16.20 ± 1.00 gr) were fed with different levels of Spirulina (5, 10 and 15%), clove (2, 4 and 6%) and control for 8 weeks. In the end, the fish were biometric, and the growth indices and carcass composition were measured. The results showed that fish had been fed with diet include 5% Spirulina, had a significant difference with other treatments in terms of growth indices, but Carcass composition except for 15% spirulina showed no significant difference with other treatments. Based on the results, the diet with 5% Spirulina showed higher specific growth rate, long growth rate, condition factor, body weight increasing and average day growth than other treatments. Among the clove treatments, the best indices were obtained in 4%, although the control had higher growth indices and carcass composition than all clove treatments. According to the results, the use of Spirulina in the diet of carp fingerling at the level of 5%, growth performance can be improved and will lead to reduced food wastes.