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Table 2 Proximate composition and amino acid contents of experimental diets (% of dry matter basis)

From: Re-evaluation of the optimum dietary protein level for maximum growth of juvenile barred knifejaw Oplegnathus fasciatus reared in cages

Parameters Protein levels (%)
35 40 45 50 60
Moisture 25.9 26.9 25.8 27.1 26.9
Crude protein 35.0 40.6 44.8 50.2 60.1
Crude lipid 18.8 18.1 17.6 17.0 16.3
Crude ash 8.8 9.3 9.8 10.2 8.0
Estimated energy (kJ g−1) 18.7 18.8 18.8 18.7 18.8
P/E ratio 18.7 21.6 23.8 26.8 31.9
 Amino acids
  Arg 2.11 2.36 2.43 3.52 3.61
  His 1.08 1.28 1.38 1.52 1.58
  Lys 3.51 4.11 4.36 5.16 5.63
  Leu 3.12 3.72 3.88 4.23 4.38
  Ile 2.52 2.81 3.25 3.56 3.67
  Met 1.21 1.38 1.51 1.58 1.76
  Cys 0.33 0.42 0.48 0.58 0.72
  Phe 1.72 2.02 2.21 2.62 2.78
  Tyr 1.63 1.79 2.23 2.38 2.54
  Thr 1.32 1.43 2.36 2.53 2.69
  Trp 0.36 0.56 0.68 0.72 0.83
  Val 2.63 2.76 3.53 3.66 3.88
  1. Values are means of duplicate samples of each diet