¹³C values of glycolytic amino acids as indicators of carbohydrate utilization in carnivorous fish.

ABSTRACT:

Background

Stable isotope analysis of single amino acids (AA) is usually applied in food web studies for tracing biosynthetic origins of AA carbon backbones and establishing trophic positions of consumers, but the method is also showing promise for characterizing quantity and quality of dietary lipids and carbohydrates.

Methods

To investigate whether changes in high- and low-digestible carbohydrates affect δ ¹³C values of glycolytic AA, i.e., AA carbon backbones sourced from the glycolytic pathway, we compared Atlantic salmon (Salmo salar) from a feeding experiment with and without dietary inclusion of the red macroalga Palmaria palmata. The Control and experimental diets had similar relative proportions of macronutrients, but their ingredient

SUBMITTER: Wang YV 

PROVIDER: S-EPMC6754727 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature