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Table 8 Fatty acid composition of liver total lipids 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
Fatty acids, g/100 g total FAME
 14:0 0.21 ± 0.12 0.27 ± 0.07 0.20 ± 0.15 0.774
 15:0 0.41 ± 0.07 0.35 ± 0.06 0.39 ± 0.06 0.165
 16:0 14.2 ± 1.1 14.2 ± 1.1 14.2 ± 0.9 0.628
 16:1 0.42 ± 0.06 0.44 ± 0.04 0.44 ± 0.08 0.814
 17:0 2.10 ± 1.20 1.62 ± 0.46 1.68 ± 0.29 0.637
 17:1 0.47 ± 0.10 0.38 ± 0.09 0.38 ± 0.12 0.120
 18:0 29.6 ± 0.8 29.6 ± 1.5 30.3 ± 1.0 0.323
 18:1 t9 0.12 ± 0.05 0.15 ± 0.05 0.16 ± 0.06 0.096
 18:1n-9 11.1 ± 1.0 11.2 ± 1.0 11.3 ± 1.6 0.914
 18:2n-6 16.3 ± 1.1 16.2 ± 1.0 16.5 ± 1.6 0.796
 18:3n-6 0.31 ± 0.09 0.24 ± 0.06 0.30 ± 0.05 0.104
 18:3n-3 0.40 ± 0.10 0.33 ± 0.04 0.33 ± 0.10 0.163
 20:0 0.27 ± 0.11 0.34 ± 0.24 0.32 ± 0.06 0.144
 20:2n-6 0.49 ± 0.10 0.45 ± 0.04 0.48 ± 0.14 0.819
 20:3n-6 0.73 ± 0.11 0.70 ± 0.07 0.63 ± 0.14 0.001
 20:4n-6 18.2 ± 1.1 18.9 ± 0.8 18.2 ± 1.5 0.309
 22:0 0.30 ± 0.06 0.30 ± 0.07 0.34 ± 0.08 0.276
 20:5n-3 0.29 ± 0.09 0.24 ± 0.08 0.20 ± 0.06 0.067
 22:5n-3 1.90 ± 0.34 1.92 ± 0.45 1.94 ± 0.41 0.980
 22:6n-3 2.18 ± 0.42a 2.22 ± 0.27a 1.65 ± 0.36b 0.001
Product: substrate-ratios
 20:3n-6/18:2n-6 0.04 ± 0.01 0.04 ± 0.01 0.04 ± 0.01 0.075
 20:4n-6/18:2n-6 1.12 ± 0.11 1.17 ± 0.06 1.11 ± 0.15 0.445
 20:5n-3/18:3n-3 0.73 ± 0.18 0.72 ± 0.15 0.62 ± 0.14 0.224
 22:6n-3/22:5n-3 1.20 ± 0.35a 1.23 ± 0.38a 0.88 ± 0.27b 0.049
  1. Values are means ± SDs for n = 10 pigs per group. Means without a common superscript letter differ, P < 0.05
  2. Abbreviations: CON control group; FAME fatty acid methyl esters; IM5 insect meal 5% group; IM10 insect meal 10% group