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Table 7 Concentrations of phospholipid and sphingolipid classes in liver and plasma of pigs fed isonitrogenous diets without (CON) or with 5% insect meal (IM5) or 10% insect meal (IM10) for 4 weeks

From: Comprehensive evaluation of the metabolic effects of insect meal from Tenebrio molitor L. in growing pigs by transcriptomics, metabolomics and lipidomics

  CON IM5 IM10 P-value
Liver, μmol/g
 PC 16.2 ± 2.4 17.3 ± 2.0 17.1 ± 2.6 0.586
 PE 8.36 ± 1.22 9.11 ± 1.18 8.32 ± 1.11 0.268
 PI 5.05 ± 0.74 5.51 ± 0.87 5.12 ± 0.70 0.402
 PS 2.47 ± 0.35 2.59 ± 0.34 2.53 ± 0.42 0.778
 SM 1.10 ± 0.14 1.18 ± 0.18 1.13 ± 0.18 0.549
 PE P 0.84 ± 0.21b 1.12 ± 0.18a 1.12 ± 0.21a 0.004
 PC O 0.61 ± 0.13 0.65 ± 0.10 0.63 ± 0.15 0.759
 LPC 0.12 ± 0.02 0.12 ± 0.02 0.13 ± 0.02 0.807
 LPE 0.10 ± 0.02 0.11 ± 0.01 0.11 ± 0.02 0.342
 PG 0.08 ± 0.02b 0.11 ± 0.02a 0.11 ± 0.03a 0.013
 Cer 0.22 ± 0.05 0.22 ± 0.06 0.21 ± 0.05 0.915
 HexCer 0.08 ± 0.02 0.08 ± 0.01 0.07 ± 0.02 0.127
 PC:PE-ratio 1.94 ± 0.04b 1.91 ± 0.09b 2.05 ± 0.10a 0.006
Plasma, μmol/L
 PC 479 ± 51 522 ± 65 534 ± 38 0.083
 SM 71.8 ± 8.8 77.5 ± 8.7 71.5 ± 7.0 0.236
 PI 62.6 ± 7.1 66.0 ± 6.2 67.3 ± 6.7 0.314
 LPC 46.0 ± 5.6 46.5 ± 4.2 46.7 ± 4.5 0.942
 PC O 25.4 ± 4.2b 29.2 ± 4.8b 35.8 ± 3.8a 0.001
 PE P 16.7 ± 3.3c 21.3 ± 3.7b 27.4 ± 3.4a 0.001
 PE 9.72 ± 1.44 9.73 ± 1.68 10.05 ± 1.63 0.872
 Cer 2.87 ± 0.43 2.64 ± 0.30 2.72 ± 0.34 0.403
 HexCer 1.73 ± 0.30 1.39 ± 0.57 1.52 ± 0.38 0.223
 PC:PE-ratio 48.7 ± 5.8 54.5 ± 7.3 52.2 ± 6.6 0.054
  1. Values are means ± SDs for n = 10 pigs per group. Means without a common superscript letter differ, P < 0.05
  2. Abbreviations: Cer ceramide, CON control group, HexCer hexosylceramide, IM5 insect meal 5% group, IM10 insect meal 10% group, LPC lysophosphatidylcholine, LPE lysophosphatidylethanolamine, PC phosphatidylcholine, PC O PC-ether, PE phosphatidylethanolamine, PE P PE-based plasmalogens, PG phosphatidylglycerol, PI phosphatidylinositol, PS phosphatidylserine, SM sphingomyelin