Hatchery performance of Pacific white shrimp, Penaeus vannamei in Biofloc technology by using different carbon sources

Abstract

The present study assessed the hatchery performance of Penaeus vannamei between the mysis 1 and postlarva 10 stages, in a zero-exchange biofloc system under three treatments with different carbon sources, fructose, lactose, and dextrose, in a 15:1 fixed C:N ratio with a stocking density of 100 L−1 along with control treatment. The study used a stocking density of 100 L−1. Water quality and survival performance were compared among treatments. The results revealed that adequate water quality parameters were more appropriate for production in the BFT treatment than in the control, and analysis of variance revealed that there were significant differences between treatment groups for NO2−N, NO3−N, and alkalinity (P < 0.05). Survival was significantly greater in the BFT treatment group than in the control group. Dextrose exhibited the highest survival rate for PL1 at 93%, followed by fructose at 88.67% and lactose at 86.33%, while the control group had the lowest survival rate at 79.33% (P > 0.05). For PL5 and PL10, the survival rates were 90.67%, 85.67%, 78.33%, and 66.67% (P < 0.05) for dextrose, fructose, lactose, and the control, respectively. The study concluded that dextrose is the most effective carbon source for maintaining the hatchery system.