Labelling fish diets with ¹⁵ N -Leucine for monitoring feed consumption and bio-distribution in Atlantic salmon.

ABSTRACT: Feeding represents 50-70% of the cost of production in salmon farming, higher than any other animal farm. The improvement of this percentage is challenging as the food is thrown into the fish tank, there is no quantification of the amount of food that is consumed by the fish. In consequence, it is difficult to adjust the food composition making it more nutritive or promoting food consumption by fish. In this study, to investigate food consumption, bio-distribution and food residues, leucine containing ¹⁵ N (a stable isotope of nitrogen) was used to label the fish food. Atlantic salmon (Salmo salar) weighing 100-120 g were maintained in 30 L tanks at a density of 14 kg/m³ . Fishes were fed daily at 1% of the fish weight with pellet labelled with ¹⁵ N-leucine

SUBMITTER: Cortes-Quezada M 

PROVIDER: S-EPMC9122439 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature