Table 1 Descriptive statistics for egg quality traits.

From: Genetic variations for egg quality of chickens at late laying period revealed by genome-wide association study

Traitsa

N

Mean

SD

CV (%)

Min

Max

h2 (SE)

ESC72

940

62.36

4.22

6.78

34.18

79.20

0.37 (0.09)

ESI72

904

1.29

0.05

4.15

1.04

1.52

0.32 (0.08)

EST72

914

0.28

0.03

11.01

0.21

0.39

0.14 (0.07)

ESS72

900

3.17

0.94

29.79

0.59

5.37

0.27 (0.08)

AH72

902

6.09

1.14

18.66

2.20

10.30

0.36 (0.09)

YC72

902

9.29

0.42

4.53

7.70

11.30

0.14 (0.07)

HU72

902

76.25

9.55

12.53

21.90

99.10

0.40 (0.09)

ESC80

831

62.42

4.34

6.95

50.74

83.27

0.42 (0.09)

ESI80

816

1.30

0.05

4.03

1.14

1.49

0.46 (0.10)

EST80

808

0.28

0.03

10.80

0.21

0.39

0.28 (0.09)

ESS80

811

2.99

0.89

29.90

0.39

5.09

0.25 (0.08)

AH80

812

5.36

1.25

23.33

2.20

9.70

0.38 (0.10)

YC80

812

9.32

0.44

4.77

7.50

11.30

0.35 (0.09)

HU80

812

69.68

11.50

16.51

31.50

97.20

0.43 (0.10)

  1. N: number of samples, ESC: eggshell color, ESI: egg shape index, EST: eggshell thickness, ESS: eggshell strength, AH: albumen height, YC: yolk color, HU: haugh unit, SD: standard deviation, CV: coefficient of variance, h2 (SE):pedigree-based hereditability (standard error).
  2. Traitsa: ESC, ESI, EST, ESS, AH, YC, HU at 72 and 80 weeks of age.
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