A team from the University of Rostock, Faculty of Agricultural and Environmental Sciences, Department of Aquaculture and Sea-Ranching obtained results from experiments on effect of different diets containing rotifers and copepods as first feeding on Sander lucioperca (LINNAEUS, 1758) larvae.
Sander lucioperca production has grown in recent years (FAO 2020). The interest on its sustainable production requires more effort in areas such as the nutritional requirements for a successful larval rearing (Policar et al. 2019). Many factors should be taken into account to find accurate organisms for the first feeding of fish larvae like its swimming behaviour, its size, and its nutritional value or biochemical composition. In this context, copepods are gaining more and more attention (Ajiboye et al. 2010).
Two independent experiments took place in 2020 in order to investigate the effect on the larval survival and growth rates until 10dph applying several diets, which contain different concentrations and combinations of rotifers and copepods. Water parameters as well as dead larvae were monitored on a daily basis and larval samples were collected at 10dph to measure total body length. Consequently, survival rates and specific growth rates (SGR) were calculated.
Source: Aquaculture Europe 2020 Abstract book: EFFECT OF DIFFERENT DIETS CONTAINING ROTIFERS AND COPEPODS AS FIRST FEEDING ON Sander lucioperca (LINNAEUS, 1758) LARVAE
Photo credit: Adrian A. Bischoff-Lang