Login / Signup

Comparative Study of Flesh Quality, Blood Profile, Antioxidant Status, and Intestinal Microbiota of European Catfish ( Silurus glanis ) Cultivated in a Recirculating Aquaculture System (RAS) and Earthen Pond System.

Cristian-Alin BarbacariuCristina Mihaela RimbuMarian BurduceaLenuta DirvariuLiviu-Dan MironRazvan Stefan BoiangiuGabriela DumitruElena Todirascu-Ciornea
Published in: Life (Basel, Switzerland) (2023)
With the increasing demand for European catfish, traditional extensive growth methods in polyculture are no longer sufficient to meet market needs. Therefore, this study aimed to identify indicators for improving recirculating aquaculture system (RAS) technology by determining and comparing growth performance, flesh quality, blood profile, oxidative status, and intestinal microbiota parameters between fish cultivated in a RAS and an earthen pond. Results revealed that RAS-grown fish had a higher fat content compared to pond-grown fish, while no significant differences were found for growth parameters. Sensory analysis showed no significant difference in taste between the two groups. Blood composition analysis showed small differences. Oxidative status analyses showed higher catalase and glutathione peroxidase activities in RAS-grown fish and slightly higher superoxide dismutase activity in pond-grown fish. Microbial analysis showed differences in the intestinal microflora, with a higher total number of aerobic germs and anaerobic germs and a lower total number of sulfite-reducing clostridia in RAS-grown fish. This study provides valuable insights into the comparative performance of a RAS and a pond rearing system in European catfish production, potentially informing future growth technologies.
Keyphrases
  • wild type
  • microbial community
  • hydrogen peroxide
  • oxidative stress
  • adipose tissue
  • quality improvement
  • risk assessment
  • nitric oxide
  • fatty acid
  • health insurance
  • anti inflammatory
  • single cell