Table 5 Effect of EP-Zn supplementation on apparent ileal amino acid digestibility on 42 d old broiler chickens

Arg

87.9 ± 1.5

87.5 ± 2.4

0.58

Val

80.0 ± 0.9^b

83.0 ± 1.1^a

0.049

Ile

81.0 ± 0.4

82.8 ± 1.0

0.13

Leu

81.4 ± 0.7^b

85.0 ± 1.7^a

0.003

Lys

85.1 ± 0.4

83.7 ± 1.1

0.26

Met

89.6 ± 0.4

89.0 ± 1.6

0.69

Phe

83.7 ± 0.5

83.8 ± 1.0

0.88

Thr

76.4 ± 0.7

78.8 ± 1.3

0.13

His

80.7 ± 0.8

80.3 ± 1.4

0.81

Ala

81.8 ± 0.8

80.3 ± 1.0

0.25

Asp

77.5 ± 1.1^b

83.4 ± 0.9^a

0.001

Cys

78.3 ± 1.1^a

74.0 ± 0.7^b

0.006

Glu

85.5 ± 0.5

87.2 ± 0.7

0.83

Gly

76.5 ± 0.7

76.9 ± 1.1

0.76

Pro

79.9 ± 0.8^b

83.8 ± 1.0^a

0.009

Ser

79.6 ± 1.4

80.8 ± 2.2

0.375

Tyr

84.5 ± 2.4

83.8 ± 2.1

0.54