Author/Authors :
Valipour A.R نويسنده - Inland Waters Aquaculture Research Center , Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Bandar Anzali, Iran , Hamedi Shahraki N نويسنده Science and Research Branch, Islamic Azad University, Rasht, Iran , Abdollahpour biria H نويسنده Department of Fisheries, Talesh Branch, Islamic Azad University, Talesh, Iran
Abstract :
In the present study effects of different levels of probiotic Pediococcus acidilactici, on growth performance and survival rate of Rutilus kutum fingerlings were investigated. Kutum fingerlings with a mean weight of 1±0.235 g were reared for 8 weeks in 500-l fiberglass tanks (15 fish per tank) with 4 diet treatments (3 replicates for each). Treatments included 1×109, 2:1×109, 3×109 CFU kg-1 dry food and a control without probiotic. At the end of the study, specific growth rate (SGR) and survival rate (SR) were significantly higher in treatments supplemented with probiotic compared to the control (p < 0.05), while the fish fed with probiotics showed lowest food conversion ratio (FCR) (p < 0.05). The results indicated that the use of 3× 109 CFU kg-1 dry food probiotics improved growth parameters and survival rate in R. kutum fingerlings.
