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Table 6 Fillet proximate and fatty acid composition of mandarin fish fed the four experimental diets for 12 weeks

From: Total replacement of dietary fish oil with alternative lipid sources in a practical diet for mandarin fish, Siniperca scherzeri, juveniles

  Experimental diets
FO LO SO Lard
Proximate composition (% wet weight)
 Moisture 77.9 ± 0.8 79.1 ± 0.4 78.7 ± 1.2 77.6 ± 0.4
 Crude protein 18.1 ± 0.5 18.1 ± 0.8 17.6 ± 0.9 18.8 ± 0.6
 Crude lipid 1.44 ± 0.36 1.70 ± 0.27 1.36 ± 0.17 1.32 ± 0.24
 Ash 1.37 ± 0.16 1.03 ± 0.11 1.14 ± 0.09 1.46 ± 0.02
Fatty acid (% total fatty acid)
 14:0 2.54 ± 0.17b 1.84 ± 0.12a 1.45 ± 0.02a 1.68 ± 0.03a
 16:0 21.8 ± 0.5a 20.8 ± 0.1a 20.8 ± 0.2a 23.4 ± 0.7b
 18:0 5.30 ± 0.12a 5.91 ± 0.14ab 6.01 ± 0.28ab 6.64 ± 0.25b
 16:1n-7 5.61 ± 0.58b 2.42 ± 0.18a 2.49 ± 0.37a 4.94 ± 0.12b
 18:1n-9 (OA)1 21.5 ± 1.7a 21.2 ± 0.7a 20.3 ± 0.1a 27.98 ± 1.2b
 18:2n-6 (LA)2 4.90 ± 0.31a 7.38 ± 0.20b 15.86 ± 0.45c 6.29 ± 0.39ab
 18:3n-3 (ALA)3 4.90 ± 0.28b 10.47 ± 0.48c 2.78 ± 0.31a 1.67 ± 0.02a
 20:4n-6 1.92 ± 0.32 1.09 ± 0.04 1.09 ± 0.02 1.42 ± 0.04
 20:5n-3 (EPA)4 6.20 ± 0.31b 4.96 ± 0.05a 4.49 ± 0.13a 4.59 ± 0.38a
 22:5n-3 1.56 ± 0.15b 1.42 ± 0.05ab 1.30 ± 0.03ab 1.04 ± 0.13a
 22:6n-3 (DHA)5 18.2 ± 1.8 16.4 ± 1.0 15.7 ± 0.2 14.0 ± 1.9
  1. Values are mean of triplicate groups and presented as mean ± SE. Values with different superscripts in the same row are significantly different (P < 0.05). The lack of superscript letter indicates no significant differences among treatments
  2. FO fish oil, LO linseed oil, SO soybean oil
  3. 1Oleic acid
  4. 2Linoleic acid
  5. 3α-Linolenic acid
  6. 4Eicosapentaenoic acid
  7. 5Decosahexaenoic acid