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Table 1 Fish growth, morphological and biochemical parameters, and whole body and muscle lipid content

From: Changes induced by dietary energy intake and divergent selection for muscle fat content in rainbow trout (Oncorhynchus mykiss), assessed by transcriptome and proteome analysis of the liver

  L line F line p-values
Diet LE HE LE HE Diet Line Line*Diet
Daily Growth index (% day-1)
  2.57 ± 0.04 2.67 ± 0.05 2.37 ± 0.01 2.52 ± 0.03 p = 0.011 p = 0.043 p = 0.64
Final body weight (g)
  73.0 ± 2.9 92.4 ± 2.9 57.8 ± 2.0 77.4 ± 2.5 p = 10 -4 p = 10 -4 p = 0.66
Whole body lipid content (% WW)
  9.5 ± 0.2 15.3 ± 1.1 10.8 ± 0.5 15.2 ± 1.0 p = 10 -4 p = 0.27 p = 0.16
HSI (%)
  1.3 ± 0.2 1.2 ± 0.2 1.3 ± 0.2 1.3 ± 0.3 p = 0.14 p = 0.99 p = 0.33
VSI (%)
  8.3 ± 0.8c 12.4 ± 1.3a 7.7 ± 0.9d 11.0 ± 1.9b p = 10 -4 p = 10 -4 p = 0.003
Muscle lipid content (% WW)
  4.3 ± 0.8c 6.4 ± 1.2b 6.3 ± 1.2b 10.1 ± 2.3a p < 10 -4 p < 10 -4 p = 0.003
Plasma triglycerides (g/l)
  5.52 ± 0.77 4.38 ± 1.31 5.74 ± 0.84 4.83 ± 1.31 p < 10 -4 p = 0.03 p = 0.47
Plasma glucose (mg/l)
  81.42 ± 6.68 80.90 ± 5.61 81.34 ± 6.16 81.01 ± 5.71 p = 0.61 p = 0.97 p = 0.91
  1. % WW, percentage of wet weight. Values are expressed as means ± SD (n = 57 individuals in all groups, except for muscle lipid content, for which n = 30); HIS, hepato-somatic index; VSI, Viscero-somatic index; p-values are presented in italics when the differences are significant (p < 0.05, MANOVA 2 factors). Means with different superscript letters are significantly different (p < 0.05, ANOVA).