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Table 2 Analyzed nutrient composition of diets (as-fed basis), Exp. 1

From: Effects of a novel bacterial phytase expressed in Aspergillus Oryzae on digestibility of calcium and phosphorus in diets fed to weanling or growing pigs

Item

Diet

 

Positive control

Negative control

500 phytase

1,000 phytase

2,000 phytase

4,000 phytase

Acid detergent fibre, %

2.70

2.98

2.79

3.04

2.95

2.72

Neutral detergent fibre, %

8.44

9.50

9.84

10.09

8.91

9.55

Phosphorus, %1

0.66 (0.42)

0.36 (0.16)

0.36

0.36

0.36

0.35

Calcium, %

0.86

0.48

0.48

0.51

0.56

0.53

Crude protein (CP), %

18.33

17.96

17.24

18.03

19.24

18.27

Dry matter, %

87.42

88.02

87.97

88.08

88.25

88.15

Ash, %

5.74

4.99

4.43

4.27

4.08

4.10

Phytase units

91

80

440

958

1743

3974

Indispensable AA, %

      

 Arginine

1.26

1.30

1.28

1.19

1.22

1.24

 Histidine

0.50

0.53

0.52

0.49

0.50

0.51

 Isoleucine

0.80

0.84

0.85

0.81

0.81

0.84

 Leucine

1.60

1.66

1.64

1.57

1.57

1.60

 Lysine

1.18

1.21

1.20

1.13

1.15

1.20

 Methionine

0.29

0.32

0.31

0.29

0.29

0.30

 Phenylalanine

0.92

0.95

0.95

0.90

0.90

0.93

 Threonine

0.71

0.75

0.71

0.67

0.69

0.69

 Tryptophan

0.24

0.24

0.24

0.24

0.23

0.24

 Valine

0.92

0.96

0.97

0.93

0.92

0.96

Dispensable AA, %

      

 Alanine

0.93

0.97

0.94

0.91

0.91

0.93

 Aspartic acid

1.92

2.03

1.98

1.87

1.91

1.95

 Cysteine

0.31

0.34

0.32

0.29

0.30

0.30

 Glutamic acid

3.19

3.32

3.26

3.12

3.14

3.20

 Glycine

0.79

0.83

0.81

0.76

0.77

0.79

 Proline

0.94

1.10

1.05

1.02

1.04

1.04

 Serine

0.83

0.86

0.79

0.76

0.78

0.76

 Tyrosine

0.63

0.61

0.61

0.56

0.57

0.57

  1. 1Values in parenthesis represent the standardized total tract digestible (STTD) phosphorus, which was calculated from the STTD phosphorus values for corn, soybean meal, and dicalcium phosphate presented in Nutrient Requirements of Swine [46].
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891