Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5539392 | Aquaculture | 2017 | 4 Pages |
Abstract
Fish welfare becomes more and more important in aquaculture. However, there is a lack of knowledge if routine prophylaxis/disinfectant might affect fish welfare. In the present study, we tested how fish responded to repeated applications of peracetic acid (PAA) in a pilot-scale recirculating aquaculture system (RAS) via measurement of cortisol in water. The results showed that fishes reduced their stress during subsequent PAA application, indicating adaptation of fish to repeated prophylaxis/disinfection with PAA. Moreover, we established a model and measured the PAA concentration onsite to investigate the distribution of PAA in RAS. We found out that by simply adding PAA only to the fish culture tank with a reduced flow rate can avoid the potential harm on the biofilter. Findings from the current study provide insights that may prove of benefit to future treatment based studies.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Aquatic Science
Authors
Dibo Liu, Lars-Flemming Pedersen, David L. Straus, Werner Kloas, Thomas Meinelt,