Effect of local probiotic on common carp Cyprinus carpio growth performance and survival rate

Abstract

The aim of this study was to assess the effect of four levels of local probiotics compared to commercial probiotic as a biological control on common carp Cyprinus carpio growth parameters, specific growth rate (SGR), food conversion ratio (FCR) and survival rate. Fish (average weight 57.85 ±0.3g) were fed 0.05, 0.1, 0.25 and 0.75 mg kg d.w^-1 local probiotic compared with 2 mg kg d.w^-1 fed of commercial probiotic and control group without additive for 42 days. Highest level of probiotics (0.75 mg kg d.w^-1) showed significantly increases on the SGR and FCR (P ≤ 0.05) compared to the other groups. Also, survival rate recorded 94.6% in comparison to control group (72.1%), suggesting that the high level of probiotics induces significant increases on growth performance which have profound may implications for the global aquaculture industry