The Comparative Study of Growth and Survival Rate of( Carasius auratus )fed With Freeze Artemia and Fairy Shrimp Supplements and Commercial Concentrate

This study was carried out to compare the effects of diets containing Artemia urmiana and Phallocryptus spinosa supplements and commercial feed on growth and survival of goldfish fingerlings during 90 days. The culture medium were contained glass aquaria in controlled condition and suitable for goldfish growth with 12 L: 12 D photoperiod and water temperature of 28 ± 1 oC. 3 test groups were included: treatment 1 fed with concentrate diet, treatment 2 fed with concentrate and frizzed( Phallocryptus spinosa )with tha same concentrations and treatment 3 fed with concentrate and frizzed( Artemia urmiana partenogenetica) with the same concentrations . Each treatment contains 3 replications and each replication consisted of 30 goldfish. The results revealed that the most growth rate (GR), specific growth rate and condition factor ( CF) were 0.11 ±0.006 , 0.34 ± 0.015 and 3.96 ± 0.10, respectively which due to treatment 3 and the most weight gain and length gain including 8.57± 1.18 and 31.54± 3.33 , respectively due to treatment 2 .During rearing period , there was not any significant difference among treatments( p> 0.05). The analysis of obtained data showed that there was a significant difference between diets containing live food and concentrate diet (p< 0.05).Therefore, the use of supplementary frozen live diet increased growth of goldfish. So, it is recommended for those involved in this industry.