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. 2016 Jul 6;11(7):e0158633. doi: 10.1371/journal.pone.0158633

Table 1. Concentrations of lysophosphatidylcholines, phosphatidylcholines and sphingomyelins in the serum of cows differing in the degree of lipolysis and parity.

Metabolite (μmol/l) Lipolysis SEM P-Value1
LOW MEDIUM HIGH Parity Lipolysis
Lysophosphatidyl-cholines
lysoPC a C16:0 24.4b 26.1ab 30.6a 0.945 0.66 0.016
lysoPC a C16:1 1.5 1.6 1.5 0.058 0.67 0.87
lysoPC a C17:0 2.2a 1.6b 1.7b 0.073 0.019 0.001
lysoPC a C18:0 20.8 18.4 21.0 0.587 0.58 0.19
lysoPC a C18:1 12.8 13.8 15.1 0.450 0.95 0.12
lysoPC a C18:2 22.2 24.4 24.9 0.850 0.08 0.35
lysoPC a C20:3 1.2 1.2 1.0 0.073 0.48 0.45
lysoPC a C20:4 1.6 1.8 1.6 0.073 0.14 0.61
lysoPC a C26:0 0.129 0.114 0.118 0.004 0.79 0.32
lysoPC a C26:1 0.071 0.071 0.081 0.003 0.19 0.21
lysoPC a C28:0 0.304 0.306 0.329 0.010 0.87 0.55
lysoPC a C28:1 0.575 0.568 0.627 0.06 0.65 0.64
Phosphatidylcholines
PC aa C28:1 2.3b 2.3ab 2.8a 0.119 0.14 0.094
PC aa C30:0 3.1b 3.4b 4.2a 0.141 0.24 0.002
PC aa C30:2 0.80 0.87 1.02 0.048 0.49 0.18
PC aa C32:0 6.0b 6.1ab 7.2a 0.235 0.14 0.038
PC aa C32:1 6.4b 7.5ab 8.5a 0.316 0.83 0.020
PC aa C32:2 7.3 7.5 8.9 0.417 0.29 0.25
PC aa C32:3 15.5 15.1 17.6 0.955 0.22 0.57
PC aa C34:1 75.9b 82.6b 107.4a 3.68 0.98 <0.001
PC aa C34:2 147.5b 147.6b 188.5a 4.95 0.32 <0.001
PC aa C34:3 27.4b 29.7b 36.8a 1.21 0.75 0.001
PC aa C34:4 4.1 4.2 4.5 0.231 0.45 0.75
PC aa C36:0 8.0 8.0 8.4 0.336 0.87 0.88
PC aa C36:1 95.3ab 86.2b 108.2a 3.46 0.96 0.047
PC aa C36:2 181.5ab 162.7b 195.8a 5.14 0.53 0.057
PC aa C36:3 82.7ab 77.8b 94.0a 2.89 0.82 0.079
PC aa C36:4 29.7b 31.7ab 37.9a 1.38 0.41 0.026
PC aa C36:5 9.4b 12.0ab 13.1a 0.67 0.68 0.056
PC aa C36:6 2.7 3.1 3.4 0.19 0.89 0.28
PC aa C38:0 3.0 2.6 2.6 0.14 0.91 0.44
PC aa C38:1 4.4 3.6 4.2 0.23 0.93 0.48
PC aa C38:3 28.1 24.0 26.0 1.78 0.39 0.70
PC aa C38:4 32.6 32.6 35.5 1.66 0.40 0.73
PC aa C38:5 26.8 31.1 34.9 1.80 0.27 0.15
PC aa C38:6 5.5 6.5 7.1 0.38 0.09 0.16
PC aa C40:2 0.44 0.40 0.40 0.021 0.085 0.61
PC aa C40:3 2.8a 2.1ab 1.7b 0.191 0.91 0.036
PC aa C40:4 9.1 7.2 7.2 0.447 0.22 0.15
PC aa C40:5 23.1 22.6 27.5 0.460 0.34 0.22
PC aa C40:6 6.8 6.7 7.9 0.006 0.055 0.47
PC aa C42:0 0.090 0.113 0.099 0.008 0.0076 0.22
PC aa C42:1 0.12 0.14 0.13 0.011 0.017 0.40
PC aa C42:2 0.195 0.188 0.196 0.067 0.009 0.90
PC aa C42:4 0.20 0.18 0.18 0.029 <0.001 0.42
PC aa C42:5 1.21a 0.94ab 0.90b 0.067 0.087 0.089
PC aa C42:6 0.61a 0.49ab 0.46b 0.029 0.043 0.046
PC ae C30:0 0.65 0.68 0.77 0.026 0.58 0.14
PC ae C30:1 1.9 1.9 2.3 0.092 0.66 0.14
PC ae C30:2 0.41 0.42 0.46 0.019 0.88 0.54
PC ae C32:1 2.7 2.8 3.1 0.101 0.55 0.16
PC ae C32:2 4.2 4.2 5.2 0.230 0.66 0.18
PC ae C34:0 2.7 2.3 2.4 0.104 0.45 0.32
PC ae C34:1 12.2 11.8 13.3 0.406 0.38 0.34
PC ae C34:2 18.4 18.0 21.0 0.687 0.52 0.15
PC ae C34:3 19.9 20.6 22.7 0.978 0.51 0.46
PC ae C36:0 1.7 1.6 1.6 0.072 0.77 0.93
PC ae C36:1 16.8 14.6 16.9 0.570 0.20 0.24
PC ae C36:2 27.6a 21.1b 24.9ab 1.01 0.22 0.034
PC ae C36:3 11.3 10.1 11.4 0.430 0.23 0.49
PC ae C36:4 8.1 8.6 9.1 0.486 0.69 0.67
PC ae C36:5 5.0 5.7 6.3 0.286 0.38 0.17
PC ae C38:0 1.8 1.9 2.0 0.077 0.74 0.46
PC ae C38:1 4.4 3.5 4.1 0.195 0.100 0.27
PC ae C38:2 4.6 3.8 4.4 0.196 0.15 0.38
PC ae C38:3 4.8 4.0 4.3 0.200 0.18 0.26
PC ae C38:4 4.2 3.8 4.0 0.172 0.009 0.74
PC ae C38:5 3.7 3.7 3.9 0.179 0.050 0.84
PC ae C38:6 3.6 4.1 4.5 0.229 0.63 0.27
PC ae C40:1 0.82 0.74 0.75 0.038 0.022 0.59
PC ae C40:2 1.5 1.5 1.5 0.065 0.15 0.91
PC ae C40:3 1.7 1.7 1.8 0.104 0.013 0.90
PC ae C40:4 1.9 2.1 2.2 0.136 0.002 0.59
PC ae C40:5 2.8 2.8 2.9 0.144 0.012 0.88
PC ae C40:6 1.5 1.4 1.5 0.067 0.026 0.86
PC ae C42:1 0.28 0.28 0.29 0.013 0.013 0.95
PC ae C42:2 0.35 0.36 0.36 0.018 0.008 0.99
PC ae C42:3 0.52 0.48 0.48 0.027 <0.001 0.67
PC ae C42:4 1.07 1.10 1.28 0.086 <0.001 0.37
PC ae C42:5 1.05 1.00 1.11 0.051 0.004 0.64
PC ae C44:3 0.103 0.110 0.114 0.006 0.003 0.70
PC ae C44:4 0.13 0.13 0.12 0.006 <0.001 0.65
PC ae C44:5 0.092 0.089 0.087 0.004 0.001 0.78
PC ae C44:6 0.077 0.077 0.070 0.002 0.009 0.33
Sphingomyelins
SM(OH) C14:1 12.6 12.2 14.5 0.532 0.33 0.23
SM(OH) C16:1 8.1 7.1 8.3 0.317 0.32 0.36
SM(OH) C22:1 18.8b 21.8a 26.9a 0.936 0.40 <0.001
SM(OH) C22:2 8.1b 8.5b 10.2a 0.308 0.55 0.008
SM(OH) C24:1 1.8 1.8 2.0 0.062 0.80 0.31
SM C16:0 99.8b 99.0b 122.7a 3.76 0.81 0.009
SM C16:1 10.1 10.0 11.8 0.444 0.93 0.21
SM C18:0 13.0b 12.2b 15.6a 0.439 0.95 0.003
SM C18:1 4.2b 3.9b 4.9a 0.152 0.43 0.024
SM C20:2 0.14b 0.12b 0.26a 0.018 0.86 0.004
SM C22:3 0.12ab 0.04b 0.15a 0.019 0.74 0.08
SM C24:0 35.2 31.2 33.6 1.36 0.72 0.58
SM C24:1 10.6b 11.6b 14.1a 0.466 0.30 0.001
SM C26:0 0.48 0.48 0.49 0.020 0.99 0.97
SM C26:1 0.29 0.29 0.29 0.016 0.096 0.99

1 Effect of parity included primiparous (n = 12) vs. multiparous (n = 18) cows, and effect of lipolysis included low (n = 10) vs. medium (n = 8) vs. high (n = 12) lipolysis groups of cows.

ab indicate differences among LS means at P ≤ 0.05.