Linseed oil as a substitute for fish oil in the diet of Arctic charr (Salvelinus alpinus), brook charr (S. fontinalis) and their reciprocal hybrids.

被引：6

作者：

Dupont-Cyr, Bernard-Antonin ^{[1
]}

Le Francois, Nathalie R. ^{[2
]}

Christen, Felix ^{[1
]}

Desrosiers, Veronique ^{[1
]}

Savoie, Arianne ^{[1
]}

Vandenberg, Grant W. ^{[3
]}

Dufresne, France ^{[1
]}

Blier, Pierre U. ^{[1
]}

机构：

[1] Univ Quebec Rimouski, Dept Biol Chim & Geog, 300,Allee Ursulines, Rimouski, PQ G5L 3A1, Canada

[2] Biodome Montreal, Div Collect Vivantes Conservat & Rech, Lab Physiol & Aquaculture Conservat, 4777 Ave Pierre De Coubertin, Montreal, PQ H1V 1B3, Canada

[3] Univ Laval, Fac Sci Agr & Alimentat, Dept Anim Sci, Pavillon Paul Comtois 2425 Rue Agr, Montreal, PQ G1V 0A6, Canada

来源：

AQUACULTURE REPORTS | 2022年 / 22卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Charr; Salvelinus; Growth; Hybridization; Proteolytic enzymes; Aquafeed; Omega-3; TBARS; FATTY-ACID-COMPOSITION; SALMON SALMO-SALAR; LONG-CHAIN PUFA; RAINBOW-TROUT; VEGETABLE-OILS; RAPESEED OIL; GROWTH-PERFORMANCE; LIPID-COMPOSITION; OXIDATIVE STRESS; THERMAL SENSITIVITY;

D O I：

10.1016/j.aqrep.2021.100949

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

This study examines the potential effects of linseed oil as a total replacement for fish oil in the formulated diet of Arctic charr, brook charr and their reciprocal hybrids. Muscle fatty acid composition, growth performance and feed utilization were evaluated on four experimental groups submitted to two different dietary lipid sources (100% linseed oil or 100% fish oil). Growth performance, feed utilization, muscle lipids and protein content were not affected by dietary linseed oil. Lipid source significantly affected muscle fatty acid profile. The replacement of fish oil by linseed led to an average reduction in 20:5n3 and 22:6 n3 (25.5% and 18.4% respectively) and an increase in 18:3n3 (177%) (mean values calculated for the four experimental groups). Muscle fatty acid profile was primarily influenced by feed content. Hybridization between the closely related species did not appear to affect the expression of key enzymes for HUFA biosynthesis. Our results show that linseed can be used as a fish oil replacement in charr without any significant impact on growth, feed utilization or muscle lipid and protein content.

引用

页数：9

共 82 条

[1] The influence of dietary fish oil replacement with mixture of vegetable oils on reproductive performance, immune responses and dynamic of fatty acids during embryogenesis in Oncorhynchus mykiss [J].