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Dietary carbohydrate-to-protein ratio influences growth performance, hepatic health and dynamic of gut microbiota in atlantic salmon ( Salmo salar ) by Alejandro Villasante; Carolina Ramírez; Héctor Rodríguez; Patricio Dantagnan; Adrián Hernández; Elías Figueroa; Jaime Romero is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Dietary carbohydrate-to-protein ratio influences growth performance, hepatic health and dynamic of gut microbiota in atlantic salmon ( Salmo salar ) about?

Atlantic salmon (__Salmo salar__) fed a carbohydrate-rich diet exhibit suboptimal growth performance, along with other metabolic disturbances. It is well known that gut microbes play a pivotal role in influencing metabolism of the host, and these microbes can be modified by the diet. The main goal of the present study was to determine the effect of feeding graded levels of digestible carbohydrates to Atlantic salmon on the distal intestine digesta microbiota at 3 sampling times (i.e., weeks 4, 8 and 12), during a 12-week trial. A low carbohydrate-to-high protein diet (LC/HP, 0% wheat starch), a medium carbohydrate-to-medium protein diet (MC/MP, 15% wheat starch) or a high carbohydrate-to-low protein diet (HC/LP, 30% wheat starch) was fed to triplicate fish tanks (27 to 28 fish per tank). We performed an in-depth characterization of the distal intestine digesta microbiota. Further, growth parameters, liver histology and the expression of genes involved in hepatic neolipogenesis in fish were measured. Fish fed a HC/LP diet showed greater hepatosomatic and viscerosomatic indexes (__P__ = 0.026 and __P__ = 0.018, respectively), lower final weight (__P__ = 0.005), weight gain (__P__ = 0

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Author

Alejandro Villasante; Carolina Ramírez; Héctor Rodríguez; Patricio Dantagnan; Adrián Hernández; Elías Figueroa; Jaime Romero

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)