Effects of carbon sources and plant protein levels in a biofloc system on growth performance, and the immune and antioxidant status of Nile tilapia (Oreochromis niloticus).

Biofloc technology is considered as a method that degrades organic waste by microorganisms and produces microbial flocs. A 30-day experiment was performed to investigate the effects of partial replacement of daily feeding intake with biofloc on the growth performances, digestive enzymes activity and liver histology of the common carp Cyprinus carpio L. fingerlings. Two hundred and eight healthy fingerlings (58.6 ± 0.2 g) were randomly distributed in 12 tanks (30 L) at a density of 25.4 kg m(-3) and fed experimental treatments (100 % daily feeding rate as a control, biofloc + 75% daily feeding rate, biofloc + 50% daily feeding rate, biofloc + 25% daily feeding rate). At the end of experiment, the results indicated that the highest weight gain was observed in the fish fed BFT 75% and control which differed significantly from those fed BFT 25 % (P 0.05). No significant difference was observed in case of lipase, amylase and alkaline phosphatase activity between the treatments. In the liver, histological alterations were found in the treatments, and feeding the fish with BFT 75% significantly improved hepatocellular quantification and qualification than the other groups. The results obtained in this experiment suggest that the biofloc improves growth performances, digestive enzyme activity and liver condition of the common carp fingerlings when 25% of daily feeding rate (BFT 75%) was replaced with one carbohydrate such as molasses in zero-water exchange system.

Effects of biofloc on growth performance, digestive enzyme activities and liver histology of common carp (Cyprinus carpio L.) fingerlings in zero-water exchange system.

The impact of stocking density and dietary carbon sources on the growth, oxidative status and stress markers of Nile tilapia (Oreochromis niloticus) reared under biofloc conditions

Biofloc technology improves growth, innate immune responses, oxidative status, and resistance to acute stress in common carp (Cyprinus carpio) under high stocking density.

Biofloc technology: a review on the microbial interactions, operational parameters and implications to disease and health management of cultured aquatic animals

Effect of C/N ratio on water quality in zero-water exchange tanks and the biofloc supplementation in feed on the growth performance of crucian carp, Carassius auratus

Lijiang Qiu

Papers

Effect of C/N ratio on water quality in zero-water exchange tanks and the biofloc supplementation in feed on the growth performance of crucian carp, Carassius auratus