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.