Table 2. Fatty acid composition of frozen fish (Feed A) and three pelleted feeds (Feeds B-D; two sizes for each type).
| Fatty acid composition (Area %) | Feeds | ||||||
|---|---|---|---|---|---|---|---|
| A | Bs † | Bb ‡ | Cs † | Cb ‡ | Ds † | Db ‡ | |
| Caprylic (C8:0) | 0.47 | 0.05 | 0.21 | 0.08 | 0.10 | 0.05 | 0.06 |
| Capric (C10:0) | 0.78 | 0.07 | 0.20 | 0.08 | 0.00 | 0.00 | 0.00 |
| Lauric (C12:0) | 1.11 | 0.14 | 0.31 | 0.16 | 0.09 | 0.21 | 0.25 |
| Tridecanoic (C13:0) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 |
| Myristic (C14:0) | 8.70 | 6.82 | 6.86 | 2.56 | 2.48 | 9.29 | 7.58 |
| Pentadecanoic (C15:0) | 1.48 | 0.43 | 0.49 | 0.21 | 0.21 | 0.78 | 0.62 |
| Palmitic (C16:0) | 28.39 | 19.32 | 20.70 | 19.78 | 20.08 | 26.33 | 27.53 |
| Heptadecanoic (C17:0) | 1.50 | 1.00 | 0.34 | 0.26 | 0.24 | 0.73 | 0.59 |
| Stearic (C18:0) | 10.46 | 4.01 | 4.66 | 6.05 | 5.53 | 4.35 | 4.38 |
| Arachidinic (C20:0) | 0.15 | 0.03 | 0.46 | 0.28 | 0.23 | 0.44 | 0.27 |
| Henecosaenoic (C21:0) | 0.00 | 0.04 | 0.15 | 0.00 | 0.00 | 0.08 | 0.02 |
| Behenic (C22:0) | 1.45 | 0.00 | 0.12 | 0.10 | 0.00 | 0.23 | 0.34 |
| Tricosanoic (C23:0) | 0.19 | 0.49 | 0.00 | 0.00 | 0.00 | 0.34 | 0.28 |
| Lignoceric (C24:0) | 1.00 | 1.40 | 1.34 | 0.36 | 0.37 | 0.82 | 0.80 |
| ΣSFA | 55.68 | 33.80 | 35.84 | 29.92 | 29.33 | 43.65 | 42.79 |
| Myristoleic (C14:1) | 0.27 | 0.13 | 0.15 | 0.06 | 0.07 | 0.04 | 0.17 |
| cis-10 Pentadecanoid (C15:1) | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.06 |
| Palmitoleic (C16:1) | 6.78 | 7.23 | 7.20 | 3.76 | 3.87 | 9.06 | 7.41 |
| cis-10 Heptadecanoic (C17:1) | 0.34 | 1.32 | 1.16 | 0.35 | 0.18 | 1.55 | 1.07 |
| Oleic (C18:1n9c) | 4.76 | 14.90 | 14.35 | 35.27 | 33.73 | 10.39 | 15.46 |
| cis-11 Eicosenoic (C20:1) | 0.24 | 0.00 | 0.18 | 0.74 | 0.70 | 0.00 | 0.11 |
| ΣMUFA | 12.49 | 23.58 | 23.04 | 40.18 | 38.55 | 21.10 | 24.28 |
| Linoleic (C18:2n6) | 1.44 | 11.52 | 9.90 | 18.31 | 19.85 | 7.02 | 8.52 |
| γ-Linolenic (C18:3n6) | 0.21 | 0.24 | 0.23 | 0.11 | 0.11 | 0.30 | 0.23 |
| cis-11,14 Eicosadienoic (C20:2 n6) | 0.15 | 0.00 | 0.00 | 0.23 | 0.17 | 0.00 | 0.11 |
| cis-8,11,14 Eicosatrienoic (C20:3 n6) | 0.00 | 0.12 | 0.12 | 0.31 | 0.07 | 0.00 | 0.11 |
| Arachidonic (C20:4n6) | 1.96 | 0.75 | 0.80 | 0.28 | 0.33 | 1.24 | 1.09 |
| Σn6-PUFA | 3.76 | 12.63 | 11.05 | 19.24 | 20.53 | 8.56 | 10.06 |
| α-Linolenic (C18:3n3) | 0.70 | 1.37 | 1.13 | 2.55 | 2.74 | 0.91 | 0.83 |
| cis-11,14,17 Eicosatrienoic (C20:3 n3) | 0.00 | 0.00 | 0.23 | 0.04 | 0.00 | 0.00 | 0.00 |
| cis-5,8,11,14,17 Eicosapentaenoic (C20:5n3) | 7.93 | 13.51 | 13.61 | 2.26 | 2.58 | 9.61 | 8.35 |
| cis-4,7,10,13,16,19 Docosahexaenoic (C22:6n3) | 9.49 | 5.01 | 5.90 | 1.90 | 1.96 | 6.72 | 6.42 |
| Σn3-PUFA | 18.12 | 19.89 | 20.87 | 6.75 | 7.28 | 17.24 | 15.60 |
| ΣPUFA | 21.88 | 32.52 | 31.92 | 25.99 | 27.81 | 25.80 | 25.66 |
| Σn6/Σn3 PUFA | 0.21 | 0.63 | 0.53 | 2.85 | 2.82 | 0.50 | 0.64 |
| DHA/EPA | 0.52 | 0.37 | 0.43 | 0.84 | 0.76 | 0.70 | 0.77 |
†, Small pellet size was fed from 107dph to 152dph.
‡, Big pellet size was fed from 147dph to 168dph.
Mean values are represented in area % of total fatty acids, SFA = Saturated fatty acids; MUFA = Monounsaturated fatty acid; PUFA = Poly unsaturated fatty acid.