Table 1
Composition of experimental diets

Diets

Ingredients (g/100 g)

(D28)

(D32)

(D36)

(D40)

(D44)

(D48)

(D52)

Caseina

26.99

30.85

34.70

38.55

42.41

46.26

50.13

Gelatinb

6.75

7.71

8.67

9.64

10.60

11.57

12.53

Dextrin

40.82

33.98

27.21

20.43

13.65

6.87

0.07

Corn oilc

5

5

5

5

5

5

5

Cod oild

2

2

2

2

2

2

2

Vitamin premixe,f

3

3

3

3

3

3

3

Mineralg

4

4

4

4

4

4

4

α-Cellulose

1.44

3.46

5.42

7.38

9.34

11.3

13.27

Carboxymethyl cellulose

10

10

10

10

10

10

10

Total

100

100

100

100

100

100

100

Proximate analyses (%)

Analyzed crude protein

28.11

31.97

36.21

40.13

43.99

48.15

52.14

Analyzed crude fat

6.95

7.12

7.31

7.14

6.89

7.11

7.13

Gross energyh, kJ/g

17.9

17.9

17.9

17.9

17.9

17.9

17.9

Estimated gross energyi, kJ/g

17.92

17.91

17.93

17.91

17.94

17.92

17.92

Digestible energy, kJ/g

14.53

14.68

14.83

14.98

15.14

15.29

15.45

P/DE ratio mg/kJ

19.27

21.79

24.27

26.70

29.06

31.39

33.66