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

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

  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