Table 2 The effect of inclusion of safflower oil and vitamin C in the broiler chicken diet on the apparent ileal digestibility coefficient (AID%) of amino acids

Lysine

88.54^b

88.91^a

88.78

88.78

88.61

88.40^d

88.66^c

88.57^cd

89.16^a

88.91^b

88.66^c

0.16

<  0.01

0.46

<  0.01

Methionine

84.51

84.10

83.96^b

84.06^ab

84.90^a

83.54^c

84.79^b

85.21^a

84.38^b

83.33^c

84.58^b

0.06

0.22

0.03

<  0.01

Threonine

84.69^b

85.27^a

85.12

84.94

84.88

85.19^ab

84.57^c

84.32^c

85.06^b

85.31^ab

85.43^a

0.10

<  0.01

0.60

<  0.01

Tryptophan

86.54^b

87.99^a

87.27

87.03

87.51

87.03^bcd

86.06^d

86.54^cd

87.51^abc

87.99^ab

88.47^a

0.22

<  0.01

0.70

<  0.01

Arginine

89.05^b

89.31^a

89.29

89.08

89.16

89.08^bc

88.99^c

89.08^bc

89.51^a

89.16^bc

89.25^b

0.04

<  0.01

0.13

<  0.01

Valine

84.61^b

85.13^a

84.83

84.78

85.00

84.83^b

84.39^c

84.61^bc

84.83^b

85.16^a

85.38^a

0.06

<  0.01

0.55

<  0.01

Leucine

90.07

90.16

90.21^a

90.13^ab

90.01^b

90.05^b

90.11^b

90.00^b

90.37^a

90.11^b

90.02^b

0.03

0.15

<  0.01

<  0.01

Isoleucine

85.07

85.23

84.91^b

85.09^b

85.45^a

84.91^b

84.91^b

85.39^a

84.91^b

85.27^a

85.51^a

0.08

0.22

<  0.01

<  0.01