Abstract
This study aims to determine the response of pacu (Piaractus mesopotamicus) to dietary lysine levels. Two experiments will be conducted in an indoor facility for 60 days. A total of 20 tanks of 1,500 litres, connected to a recirculation aquaculture system (RAS), will be used. The RAS will be equipped with a mechanical and biological filter, a heat exchanger and aeration system. In the fir…