Effect of probiotic Primalac on growth performance, survival and body composition of Acipenser persicus fingerlings

The use of Probiotics for increasing the growth and resistance against disease are well documented in aquaculture. We conducted a study to determine the effects of probiotic (Primalac) on the growth, survival and body composition in Acipenser persicus fingerlings. The commercial Probiotic, Primalac, were mixed thoroughly with the artificial feeds at concentration of 0.0 (control), 0.05, 0.1 and 0.15 % of dry diet and fed to healthy fish (14.676±0.813 g) at 2 – 3.5 % of their body weight daily in two split doses for 15 weeks. The trail was carried out in 12 PVC tanks 500 Liter which about 200 liter of water. That all tanks 10 juvenile Persian sturgeons were stocked. During the experimental period, weight and length of fish were recorded at an interval of 14 days. Results showed that specific growth rate (SGR), body weight gain (BW %), net protein utilization (PER) and feed efficiency (FE) showed significantly (P<0.05) different among the experimental groups. The present study results showed that probiotic treatments indicated no significant difference were observed in body chemichal compositions (P>0.05).