脂肪酸 | 一期 | 二期 | 三期 | 四期 | 五期 | 六期 |
C14:0 | 0.97 ± 0.34a | 1.32 ± 0.72b | 1.08 ± 0.54bc | 0.94 ± 0.25ac | 0.76 ± 0.31c | 0.48 ± 0.23d |
C14:1n7 | 0.56 ± 0.17ab | 0.72 ± 0.18a | 0.36 ± 0.08b | 0.42 ± 0.12ab | 0.43 ± 0.18ab | 0.41 ± 0.26ab |
C15:0 | 0.63 ± 0.31a | 0.75 ± 0.14b | 0.48 ± 0.12c | 0.67 ± 0.28a | 0.54 ± 0.15ac | 0.58 ± 0.27d |
C16:0 | 21.22 ± 3.87a | 18.43 ± 5.17ab | 17.77 ± 3.72b | 17.52 ± 4.71ab | 16.04 ± 5.91b | 15.07 ± 3.65c |
C16:1n7 | 8.54 ± 3.11a | 9.63 ± 3.72b | 9.77 ± 2.85b | 9.54 ± 3.93b | 8.53 ± 1.04a | 4.51 ± 1.45c |
C16:1n5 | 0.21 ± 0.04a | 0.18 ± 0.02a | 0.23 ± 0.02a | 0.26 ± 0.08b | 0.15 ± 0.06c | 0.15 ± 0.04c |
C16:2n4 | 0.27 ± 0.16 | 0.25 ± 0.11 | 0.27 ± 0.09 | 0.24 ± 0.08 | 0.21 ± 0.17 | 0.19 ± 0.07 |
C17:0 | 0.82 ± 0.09ab | 0.77 ± 0.17b | 1.06 ± 2.64a | 0.82 ± 0.05ab | 1.21 ± 0.32a | 0.98 ± 0.31ab |
C18:0 | 4.39 ± 0.93 | 4.42 ± 1.03 | 4.87 ± 1.15 | 3.92 ± 1.24 | 4.57 ± 0.85 | 4.83 ± 0.95 |
C18:1n9 | 29.57 ± 4.33a | 31.70 ± 2.83a | 33.42 ± 10.52b | 31.86 ± 6.46ab | 30.06 ± 5.56a | 34.82 ± 7.38b |
C18:1n7 | 2.58 ± 1.07a | 2.06 ± 0.88bc | 1.88 ± 1.26c | 2.14 ± 0.54b | 1.97 ± 0.44bc | 2.64 ± 0.83a |
C18:2n6 | 15.77 ± 4.18a | 16.66 ± 2.71ab | 18.04 ± 5.44b | 19.82 ± 3.83b | 22.68 ± 7.37c | 24.07 ± 6.93c |
C18:3n6 | 0.12 ± 0.032 | 0.11 ± 0.05 | 0.18 ± 0.08 | 0.15 ± 0.04 | 0.17 ± 0.03 | 0.18 ± 0.014 |
C18:3n3 | 3.43 ± 1.15a | 3.27 ± 0.75a | 3.07 ± 0.32b | 2.46 ± 1.33c | 2.42 ± 0.91c | 2.27 ± 0.88c |
C18:3n4 | 0.71 ± 0.12a | 0.48 ± 0.20b | 0.29 ± 0.12c | 0.22 ± 0.16c | 0.13 ± 0.17d | 0.15 ± 0.09cd |
C18:4n3 | 0.37 ± 0.04a | 0.26 ± 0.032b | 0.27 ± 0.024b | 0.22 ± 0.028c | 0.23 ± 0.16bc | 0.24 ± 0.061bc |
C20:1n9 | 0.84 ± 0.33a | 0.86 ± 0.41a | 0.78 ± 0.37a | 0.96 ± 0.42c | 0.97 ± 0.11c | 1.09 ± 0.46c |
C20:1n7 | 0.54 ± 0.07a | 0.42 ± 0.03a | 0.39 ± 0.02a | 0.72 ± 0.13b | 0.67 ± 0.22b | 0.76 ± 0.09b |
C20:2n6 | 0.23 ± 0.05 | 0.34 ± 0.06 | 0.44 ± 0.052 | 0.41 ± 0.13 | 0.39 ± 0.17 | 0.48 ± 0.20 |
C20:4n6 | 1.33 ± 0.72a | 0.95 ± 0.37b | 0.82 ± 0.07c | 0.79 ± 0.13c | 0.84 ± 0.22c | 0.85 ± 0.36c |
C20:3n3 | 0.21 ± 0.01 | 0.19 ± 0.02 | 0.26 ± 0.09 | 0.19 ± 0.01 | 0.21 ± 0.02 | 0.24 ± 0.02 |
C20:4n3 | 0.36 ± 0.04a | 0.28 ± 0.02b | 0.27 ± 0.09b | 0.25 ± 0.02b | 0.38 ± 0.09a | 0.25 ± 0.02b |
C20:5n3 | 1.86 ± 0.64a | 1.75 ± 0.36a | 1.14 ± 0.54b | 1.06 ± 0.07bc | 0.92 ± 0.34c | 0.87 ± 0.55c |
C22:0 | 0.36 ± 0.11 | 0.34 ± 0.07 | 0.31 ± 0.08 | 0.28 ± 0.03 | 0.26 ± 0.11 | 0.34 ± 0.07 |
C22:2n6 | 0.36 ± 0.02a | 0.45 ± 0.04b | 0.31 ± 0.01a | 0.42 ± 0.06b | 0.61 ± 0.11c | 0.44 ± 0.12b |
C22:5n3 | 0.82 ± 0.19 | 0.81 ± 0.27a | 0.93 ± 0.16 | 0.92 ± 0.13 | 0.85 ± 0.14 | 0.87 ± 0.15 |
C22:6n3 | 0.86 ± 0.17a | 0.77 ± 0.12b | 0.43 ± 0.05c | 0.46 ± 0.07c | 0.31 ± 0.02d | 0.25 ± 0.01d |
Sum | 97.81 | 97.88 | 98.76 | 97.46 | 96.31 | 98.61 |
SFA | 28.39 | 26.03 | 25.57 | 24.15 | 23.38 | 22.28 |
MUFA | 42.84 | 45.38 | 46.83 | 45.9 | 42.78 | 44.38 |
∑PUFA | 26.31 | 26.22 | 26.29 | 27.17 | 29.94 | 30.76 |
∑HUFA | 5.44 | 4.75 | 3.85 | 3.67 | 3.51 | 3.33 |
DHA/EPA | 0.46 | 0.44 | 0.37 | 0.43 | 0.34 | 0.28 |