Table 1 Summary statistics and heritabilities (h²) estimation for the 35 phenotypic traits

Weight traits, g

 Carcass weight

1,632.46

234.86

987

0.54

0.08

 Eviscerated weight

1,491.01

214.17

984

0.51

0.07

 Breast muscle weight

86.15

15.73

988

0.44

0.07

 Leg muscle weight

89.74

14.02

987

0.46

0.07

 Skin and subcutaneous fat weight

376.73

89.79

988

0.60

0.08

 Abdominal fat weight

32.52

12.68

975

0.63

0.08

 Skeleton weight

597.42

79.47

988

0.43

0.07

 Head weight

77.19

9.66

988

0.47

0.07

 Neck weight

88.11

13.02

987

0.31

0.06

 Swing weight

72.69

9.57

965

0.43

0.07

 Heart weight

11.70

1.81

976

0.41

0.07

 Gizzard weight

52.37

9.91

987

0.41

0.07

 Liver weight

35.84

7.06

973

0.32

0.06

 Feet weight

41.27

6.33

988

0.51

0.07

Length traits, cm

 Neck length

22.54

1.51

983

0.17

0.05

 Total intestine length

144.57

14.91

966

0.36

0.07

 Duodenum length

26.67

2.84

967

0.21

0.06

 Jejunum length

117.90

13.35

966

0.35

0.07

 Ileum length

14.63

1.54

966

0.37

0.07

 Shank length

5.19

0.26

942

0.16

0.05

Percentage traits, %

 Dressed percentage

85.80

2.77

984

0.08

0.05

 Eviscerated carcass

78.39

2.97

984

0.10

0.05

 Lean meat

23.64

1.59

984

0.37

0.07

 Breast muscle

11.55

1.45

984

0.38

0.07

 Leg muscle

12.09

1.33

984

0.30

0.07

 Skin & subcutaneous fat

21.29

2.38

984

0.55

0.08

 Abdominal fat

2.10

0.67

971

0.56

0.08

 Skeleton

35.33

1.97

986

0.28

0.06

 Head

5.21

0.48

987

0.28

0.06

 Neck

5.93

0.56

986

0.47

0.07

 Swing

4.90

0.38

961

0.27

0.06

 Heart

0.72

0.09

975

0.25

0.06

 Gizzard

3.23

0.54

986

0.45

0.07

 Liver

2.20

0.33

972

0.09

0.05

 Feet

2.78

0.33

987

0.24

0.06