Increasing fish production in recirculating aquaculture system by integrating a biofloc-worm reactor for protein recovery.

ABSTRACT: Aquaculture, producing half of global fish production, offers a high-quality protein source for humans. Improving nitrogen use efficiency (NUE) through microbial protein recovery is crucial for increasing fish production and reducing environmental footprint. However, the poor palatability and high moisture content of microbial protein make its utilization challenging. Here, a biofloc-worm reactor was integrated into a recirculating aquaculture system (BW_RAS) for the first time to convert microbial protein into Tubificidae (Oligochaeta) biomass, which was used as direct feed for culturing fish. Batch experiments indicated that an aeration rate of 0.132 m³ L ^-1 h ^-1 and a worm density of 0.3 g cm^-2 on the carrier were optimal for mic

SUBMITTER: Wang Y 

PROVIDER: S-EPMC11363497 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature