Efficacy of using Sanyar prebiotics in biofloc environment: Evaluation of production performance, water nitrogen compounds, hematological and metabolic responses of common carp (Cyprinus carpio)

The study was executed to find out the potential effects Sanyar prebiotic on production performance, water nitrogen compounds, blood and metabolic parameters of Common carp (Cyprinus carpio) reared in a biofloc system. 324 fish fingerlings (average weight 10.09 ± 0.45 g) were stocked in eighteen 35-L tanks (18 fish in each tank). Six experimental groups after 10 days of adaptation to laboratory conditions were tested for 60 days, which including: Control group without additive with clean water (C), Control group without additive with Floc (FC), Floc groups with 0.1 and 0.2 g (FP1 and FP2) powder prebiotic and Floc groups with 1 and 2 ml (FL1 and FL2) liquid prebiotic per 100 g of basic diet. At the end of the experiment, the FP1 group significantly increased final biomass weight, final density, and protein efficiency ratio (PER) and decreased feed conversion ratio (FCR) when compared to other groups. Total water ammonia was reduced in the biofloc groups containing prebiotic supplementation compared to the biofloc group without prebiotic (FC). Serum urea and creatinine levels increased significantly in the FC group compared to the other experimental groups. ALT, AST and ALP enzymes were significantly increased in groups C and FC compared to the groups fed with Saynar prebiotic. The highest WBC and RBC counts were obtained in FL1 and FC groups, respectively. In conclusion, dietary supplementation of FP1 (0.1 g Sanyar prebiotic per 100 g of basic diet) can be potentially used as health enhancer in Common carp cultured under biofloc system.