Analysis of phytosterols by gas chromatography with mass spectrometry in Atlantic salmon (Salmo salar) fed novel lipid sources ...

• Main Author: Perry, Judy F.
• Format: Text
• Language: English
• Published: Memorial University of Newfoundland 2023
• Subjects: Fid; Atlantic salmon; Salmo salar
• Online Access: https://dx.doi.org/10.48336/zjjy-cj07; https://research.library.mun.ca/15829/

Fishmeal and fish oil have been considered the most digestible and nutritious ingredients for farmed fish, but there is a shift towards more sustainable alternatives. In this study, fish oil was replaced with four alternative oil sources, oil from Camelina sativa seeds, oil from rapeseed, oil from Pavlova sp., and a microbial oil produced from Schizochytrium sp.. Atlantic salmon (Salmo salar) were fed experimental diets, including either microbial oil or camelina oil at low and high levels of inclusion, as well as a control diet containing traditional fish oil. Sterol content was investigated to determine if added phytosterols were incorporated by the salmon, and subsequently transferred to the fish tissue for human consumption. Sterols were identified, and quantified where possible, in the alternative oil sources and then in salmon muscle tissue after feeding trials. Gas chromatography/mass spectrometry (GC-MS) and gas chromatography/flame ionization detection (GC-FID) were used in the analysis. Five ...