Table 4 Effects of natural colorant on internal egg quality traits

Yolk height (mm)

14.83 ± 0.05

13.30 ± 2.07

13.75 ± 1.58

14.53 ± 0.52

14.62 ± 0.42

0.27

Yolk index

5.15 ± 0.84

4.81 ± 0.76

5.19 ± 0.86

5.04 ± 0.11

5.37 ± 0.14

0.12

Yolk width (cm)

2.89 ± 0.06

2.62 ± 0.37

2.54 ± 0.25

2.89 ± 0.12

2.73 ± 0.64

0.05

Albumen height (mm)

5.49 ± 0.21

5.06 ± 1.04

5.41 ± 1.19

5.78 ± 0.43

5.54 ± 0.30

0.17

Haugh unit

77.41 ± 1.68

76.08 ± 2.22

78.21 ± 4.03

77.54 ± 2.58

76.93 ± 2.25

0.60

Yolk color

7.50 ± 1.47^c

3.31 ± 0.83^b

3.06 ± 0.13^b

2.25 ± 0.20^ab

1.31 ± 0.13^a

0.17