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Table 4 Intestinal PLFA composition (%) in rainbow trout at different sampling points at diel cyclic temperatures

From: Effects of constant and diel cyclic temperatures on the liver and intestinal phospholipid fatty acid composition in rainbow trout Oncorhynchus mykiss during seawater acclimation

SP FW-42 SW-1 SW-21
Temp CT VT2 VT4 CT VT2 VT4 CT VT2 VT4
Saturated fatty acid
 C14:0 1.27b 1.14b 1.02c 1.28b 1.20b 1.25b 1.50a 1.72a 1.67a
 C16:0 19.84ABa 21.32A 18.76B 16.96Bb 20.7A 20.46A 20.95a 21.37 20.20
 C17:0 0.62 0.73 0.63 0.82 0.68 1.01 0.88 1.11 0.85
 C18:0 11.07Aa 10.36A 8.69Bc 9.19Bb 10.41B 12.59Aa 10.67a 9.81 10.49b
 C20:0 0.27 0.38a 0.33a 0.26AB 0.29Aab 0.21Bb 0.22 0.23b 0.22b
 C22:0 0.11 0.14 0.13 0.15 0.10 0.14 0.11 0.19 0.12
 C24:0 0.77B 1.20Aa 0.81B 0.60B 0.81Ab 0.86A 0.74 0.90ab 0.77
 ƩSFA 33.94Aa 35.28A 30.37Bb 29.26Bb 34.19A 36.51Aa 35.08a 35.32 34.31a
Monounsaturated fatty acid
 C14:1n5 0.55c 0.74c 0.69b 1.00b 1.00b 1.41a 1.37a 1.28a 1.28a
 C16:1n7 1.12b 0.96b 0.96b 1.30b 0.90b 1.40b 2.22a 2.78a 2.97a
 C17:1n7 0.34 0.30 0.26b 0.45AB 0.25B 0.59Aa 0.34 0.40 0.37b
 C18:1n9 2.07 2.22b 1.87b 2.08B 1.89Bc 2.57Aa 2.25B 2.63Aa 2.70Aa
 C20:1n9 0.28 0.33 0.28 0.26 0.26 0.33 0.27 0.33 0.31
 C22:1n9 0.07 0.10 0.08 0.07 0.09 0.08 0.10 0.09 0.10
 C24:1n9 2.64 2.54a 2.34ab 2.18 2.06b 2.69a 2.36A 1.95Bb 1.73Bb
 ƩMUFA 7.07b 7.20b 6.46b 7.32Bb 6.46Bb 9.07Aa 8.90a 9.47a 9.46a
Polyunsaturated fatty acid
 C18:2n6 10.58A 9.43Ab 7.43Bb 11.7B 7.06Cc 13.56Aa 11.90C 13.35Ba 14.86Aa
 C18:3n3 0.12 0.11 0.11b 0.1 0.09 0.11b 0.09 0.15 0.20a
 C18:3n6 0.16b 0.16b 0.15b 0.26ab 0.13b 0.19b 0.36a 0.58a 0.67a
 C20:2n6 0.80A 0.51Bb 0.59ABb 0.61 0.55b 0.76a 0.71 0.81a 0.82a
 C20:3n3 0.79 0.74b 0.69 0.73 0.69b 0.88 0.93 0.98a 0.96
 C20:3n6 1.32Aa 0.89B 0.91B 0.89b 0.84 1.00 0.91b 0.90 0.96
 C20:4n6 3.28a 3.20 3.02 2.68b 3.11 2.86 2.99ab 2.72 2.76
 C20:5n3 2.36b 2.06b 2.13b 2.34b 2.14b 2.45b 3.03a 3.19a 3.24a
 C22:2n6 0.37 0.42 0.43 0.40 0.46 0.42 0.38 0.51 0.49
 C22:6n3 39.21Bb 40.01Bb 47.71Aa 43.71Aa 44.27Aa 32.16Bb 34.71Ac 32.02Bc 31.28Bb
 ƩPUFA 58.99Bb 57.52Bb 63.17Aa 63.42Aa 59.34Ba 54.42Bb 56.02c 55.21c 56.23b
  1. Note: Values represent the mean of 4 replicates. Different lowercase letters indicate significant differences (P < 0.05) among different treatments at the same time, and different capital letters indicate significant differences at different times at the same treatment. Data containing mean ± SD are included in Additional file 2. FW-42 End of growth trial, SW-1 One day after salinity reached 30, SW-21 21 days after salinity reached 30, SFA Saturated fatty acid, MUFA Monounsaturated fatty acid, PUFA Polyunsaturated fatty acid