Comparison of EPA and DHA utilization in Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) fed two diets with different content of fish oil and rapeseed oil

被引：3
|
作者：
Berge, Gerd Marit [1 ]
Krogdahl, Ashild [2 ]
Hillestad, Marie [3 ]
Holm, Halvor [4 ]
Holm, Jorgen [5 ]
Ruyter, Bente [1 ]
机构：
[1] Nofima Norwegian Inst Food Fisheries & Aquacultur, Sjolsengveien 22, N-6600 Sunndalsora, Norway
[2] Norwegian Univ Life Sci NMBU, Fac Vet Med, Dept Paraclin Sci, Oslo, Norway
[3] BioMar AS, Trondheim, Norway
[4] Univ Oslo, Inst Basic Med Sci, Dept Nutr, Oslo, Norway
[5] BioMar AS, Brande, Denmark
来源：
JOURNAL OF APPLIED AQUACULTURE | 2023年 / 35卷 / 01期
关键词：
Apparent retention; Atlantic salmon; fatty acids; rainbow trout; FATTY-ACID-COMPOSITION; GROWTH-PERFORMANCE; LIPID SOURCES; PALM OIL; TISSUE COMPOSITION; VEGETABLE-OILS; NET PRODUCER; N-3; LIVER; METABOLISM;
D O I：
10.1080/10454438.2021.1955804
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Atlantic salmon and rainbow trout with initial weights of 460-468 g were fed two diets either high in fish oil (FO) or rapeseed oil (RO) content. The abilities of the fish to metabolize and deposit lipid and n-3 fatty acids were compared. Growth rates, FCR, and fat digestibility were similar in both species. Rainbow trout showed higher condition factors and lower dress-out percentage and hepatosomatic index than salmon. Whole-body content of EPA and DHA were higher in both species fed the FO diet than in the RO diet, but indicated higher capacities to produce DHA in rainbow trout than in salmon. The total fat content in the RO group was lower and DHA higher in rainbow trout liver than in salmon, indicating a greater ability of rainbow trout to increase metabolism to DHA.
引用
收藏
页码：167 / 185
页数：19
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