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. 2018 Nov 23;45(2):697–718. doi: 10.1007/s10695-018-0587-9

Table 5.

Lipid contents (% of wet weight) and fatty acid compositions (% of total fatty acids) of liver and muscle from juvenile Atlantic bluefin tuna (Thunnus thynnus L.) fed either a reference diet (Magokoro®), 15% lipid diet based on krill oil (15KO), or 20% lipid diet based on krill oil (20KO) in trial A

Liver Muscle
MGK 15KO 20KO MGK 15KO 20KO
Total lipid (%) 6.5 ± 0.8a 3.4 ± 0.7b 2.2 ± 0.1c 0.8 ± 0.2 0.8 ± 0.1 0.8 ± 0.0
14:0 2.5 ± 0.1a 1.6 ± 0.3b 0.5 ± 0.1c 0.8 ± 0.1a 0.7 ± 0.1a 0.3 ± 0.0b
16:0 18.0 ± 0.7c 20.6 ± 0.2b 24.7 ± 1.0a 19.6 ± 0.2a 20.5 ± 1.9a 17.3 ± 0.8b
18:0 6.3 ± 0.2b 6.8 ± 0.1b 11.4 ± 0.5a 10.9 ± 0.3b 10.5 ± 0.4b 14.1 ± 0.4a
Total SFA1 28.2 ± 1.1b 30.1 ± 0.2b 38.8 ± 1.0a 33.1 ± 1.1 33.6 ± 1.9 34.3 ± 0.7
16:1n−7 3.7 ± 0.2a 2.6 ± 0.2b 1.1 ± 0.1c 1.3 ± 0.2a 1.2 ± 0.2a 0.7 ± 0.1b
18:1n−9 15.6 ± 0.7a 9.6 ± 0.3b 5.8 ± 1.3c 9.0 ± 0.4a 8.0 ± 0.1b 7.8 ± 0.6b
18:1n−7 4.1 ± 0.2a 4.5 ± 0.1a 3.0 ± 0.3b 3.0 ± 0.2b 3.8 ± 0.1a 3.7 ± 0.1a
20:1n−9 2.0 ± 0.1a 1.2 ± 0.1b 0.3 ± 0.0c 0.7 ± 0.1a 0.9 ± 0.1a 0.5 ± 0.0b
Total MUFA2 30.0 ± 1.2a 19.8 ± 0.3b 12.1 ± 2.2c 17.8 ± 0.4a 15.0 ± 0.1b 13.7 ± 0.4b
18:2n−6 6.9 ± 0.3a 1.8 ± 0.2b 0.9 ± 0.1c 3.3 ± 0.1a 1.4 ± 0.1b 1.3 ± 0.1b
20:4n−6 1.7 ± 0.1b 1.3 ± 0.1c 2.4 ± 0.1a 2.0 ± 0.1a 1.2 ± 0.1c 1.6 ± 0.1b
22:5n−6 0.7 ± 0.1 0.9 ± 0.1 1.1 ± 0.1 1.6 ± 0.1a 1.0 ± 0.1b 1.2 ± 0.2b
Total n−6 PUFA3 11.3 ± 0.4a 5.7 ± 0.3c 6.8 ± 0.6b 8.2 ± 0.1a 5.6 ± 0.3c 6.6 ± 0.1b
18:3n-3 0.8 ± 0.1a 0.5 ± 0.0b 0.2 ± 0.0c 0.3 ± 0.0a 0.3 ± 0.0a 0.2 ± 0.0b
18:4n−3 0.9 ± 0.1a 0.6 ± 0.2a 0.3 ± 0.0b 0.3 ± 0.0a 0.3 ± 0.0a 0.2 ± 0.0b
20:4n−3 0.5 ± 0.0a 0.3 ± 0.0b 0.2 ± 0.0b 0.3 ± 0.0a 0.2 ± 0.0b 0.2 ± 0.0b
20:5n−3 6.1 ± 0.4b 7.8 ± 0.7a 5.7 ± 0.4b 5.3 ± 0.2c 7.6 ± 0.3a 6.5 ± 0.2b
22:5n−3 2.1 ± 0.2a 2.1 ± 0.2a 0.8 ± 0.0b 1.6 ± 0.1a 1.5 ± 0.2ab 1.2 ± 0.0b
22:6n−3 15.1 ± 1.3b 27.0 ± 0.8a 28.8 ± 0.9a 28.3 ± 0.3b 31.9 ± 0.8a 31.2 ± 0.5a
Total n−3 PUFA4 27.1 ± 2.0b 39.6 ± 0.2a 37.5 ± 1.3a 37.6 ± 0.2b 42.7 ± 2.2a 40.7 ± 1.8a
C16 PUFA 2.4 ± 0.1a 1.7 ± 0.0b 2.6 ± 0.1a 2.0 ± 0.1a 2.0 ± 0.0b 2.4 ± 0.1a
Total PUFA 38.4 ± 2.3b 45.4 ± 0.4a 44.4 ± 1.8a 45.8 ± 1.3 48.3 ± 2.4 47.3 ± 1.9
DHA/EPA 2.5 ± 0.1c 3.5 ± 0.4b 5.1 ± 0.2a 5.3 ± 0.1a 4.2 ± 0.1c 4.8 ± 0.1b
n−3/n−6 2.4 ± 0.1c 6.9 ± 0.3a 5.5 ± 0.3b 4.6 ± 0.2c 7.6 ± 0.2a 6.2 ± 0.3b
Unknown 3.4 ± 0.3b 4.7 ± 0.2a 4.7 ± 0.4a 3.3 ± 0.2ab 3.1 ± 0.2b 4.7 ± 0.3a

Results are means ± SD (n = 2). An SD of 0.0 implies an SD of < 0.05. Mean values, within the same dietary trial, bearing different superscript letters are significantly different (P < 0.05). 1Totals include 15:0, 20:0, 22:0, and 24:0. 2Totals include 16:1n−9, 18:1n−11, 20:1n−7, 22:1 isomers, and 24:1. 3Totals include 18:3n−6, 20:2n−6, and 22:4n−6. 4Totals include 20:3n−3 and 22:3n−3

DHA docosahexaenoic acid, EPA eicosapentaenoic acid, MGK Magokoro, MUFA monounsaturated fatty acid, PUFA polyunsaturated fatty acid, SFA saturated fatty acid, 15KO diet containing 15% lipid as krill oil, 20KO diet containing 20% lipid as krill oil, 15KORO diet containing 15% lipid as 50% krill oil and 50% rapeseed oil