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Table 2 The height and width of folds and wall thickness in mid and distal intestine (μm)

From: Substitution of dietary fish oil with plant oils is associated with shortened mid intestinal folds in Atlantic salmon (Salmo salar)

Mid intestine
  FO OO RO SO
Height of folds 1393 ± 36.4 a 1134 ± 31.2 b 1131 ± 42.4 b 1012 ± 24.8 b
Width of folds 135.8 ± 4.8ab 122.6 ± 4.3 a 129.2 ± 4.5ab 142.0 ± 5.4 b
Wall thickness 732.2 ± 21.4a 652.3 ± 24.0a 652.5 ± 21.6a 694.0 ± 20.9a
Distal intestine
  FO OO RO SO
Height of simple folds 1240 ± 37.8a 1204 ± 39.7a 1221 ± 29.3a 1242 ± 35.7a
Width of simple folds 138.9 ± 5.3a 127.1 ± 5.5a 131.3 ± 5.9a 131.8 ± 5.3a
Height of complex folds 3456 ± 146.9ab 3280 ± 91.7ab 3598 ± 100.2 a 3123 ± 79.7 b
Width of complex folds 265.2 ± 10.8a 267.1 ± 10.7a 234.1 ± 7.8a 238.7 ± 10.1a
Wall thickness 705.2 ± 20.4 a 616.8 ± 22.8 b 643.3 ± 21.5ab 621.4 ± 18.0 b
  1. FO, fish oil, OO, olive oil, RO, rapeseed oil, SO, soybean oil.
  2. a,bSignificant differences (ANOVA, P < 0.05) between dietary groups in the same intestinal segment are denoted by different superscript letters. The values that differ significantly are highlighted in bold text.