Table 3 Summary statistics of the study subjects

Average daily gain from 30 to 105 kg body wt, g/d

DG

779

1094.00

112.80

750.6

1440.0

Ultrasound loin muscle area, cm²

LEA

776

34.64

3.27

26.0

50.2

Ultrasound backfat thickness, cm

BF

776

3.17

0.56

1.8

5.0

Height at withers, cm

HEIGHT

779

60.97

1.98

54.4

67.4

Length, cm

LENGTH

779

106.00

3.38

98.0

116.0

Front width, cm

FW

779

34.72

1.49

30.0

42.5

Chest width, cm

CW

779

29.88

1.51

19.0

39.2

Rear width, cm

RW

779

32.29

1.21

28.6

38.8

Chest depth, cm

CD

779

35.77

1.28

24.9

39.8

Circumference of chest, cm

CC

779

111.40

3.01

99.0

120.0

Circumference of cannon bone at front (at 105 kg), cm

CCB at F105

779

18.17

0.67

16.0

20.6

Circumference of cannon bone at rear (at 105 kg), cm

CCB at R105

779

18.91

0.62

17.0

22.4

Circumference of cannon bone at front (at 30 kg), cm

CCB at F30

681

13.70

0.64

12.0

16.2

Circumference of cannon bone at rear (at 30 kg), cm

CCB at R30

681

14.05

0.64

12.4

16.5

Front leg score at 30 kg

SCORE at F30

718

2.70

0.54

1

5

Rear leg score at 30 kg

SCORE at R30

718

2.27

0.57

1

5

Front leg score at 105 kg

SCORE at F105

720

3.08

0.56

1

5

Rear leg score at 105 kg

SCORE at R105

720

2.73

0.57

1

5

Carcass wt, kg

CWT

302

71.76

2.53

65.1

82.0

Carcass yield, %

CY

286

68.98

1.46

62.4

75.4

Carcass length (1st cervical - pubic), cm

CL

302

87.64

2.19

81.5

93.0

Carcass length I (1st thoracic - pubic), cm

CL1

302

72.34

1.95

67.0

77.6

Carcass length II (1st thoracic - last lumbus), cm

CL2

302

62.76

2.09

57.5

68.3

Carcass length III (Longissimus muscle length), cm

CL3

302

52.54

2.00

47.5

58.3

Carcass thickness, cm

CT

302

34.99

1.10

32.0

39.0

Thoracic

TVN

302

14.71

0.67

13

16

Lumbar

LVN

302

6.03

0.50

5

8

Total

-

302

20.74

0.59

20

22

Shoulder, cm

SSFT

302

4.00

0.58

2.4

5.8

Back, cm

BSFT

302

2.59

0.45

1.6

4.0

Loin, cm

LSFT

302

3.30

0.46

2.2

6.7

at 4–5 rib, cm²

LEA at 45r

301

17.85

3.18

9.0

31.2

at the middle, cm²

LEA at HBL

302

36.43

4.49

26.5

50.1

Moisture content, %

MOS

302

72.72

1.16

68.8

75.3

Intramuscular fat, %

IMF

302

5.04

1.62

1.5

9.8

Protein content, %

PROT

302

21.34

0.66

19.5

23.4

Cooking loss, %

COOK

301

24.28

2.63

16.0

32.5

Centrifugal water-holding capacity, %

WHC

301

78.34

3.79

68.2

87.3

Shear force value, kg/cm²

SF

301

2.62

0.65

1.4

4.9

pH

pH

301

5.64

0.23

4.9

6.3

Lightness of longissimus muscle (L*)

M-L*

300

51.63

3.44

43.6

65.3

Redness of longissimus muscle (a*)

M-a*

300

3.55

1.18

0.7

6.9

Yellowness of longissimus muscle (b*)

M-b*

300

6.56

1.38

1.0

11.2

Lightness of subcutaneous fat (L*)

F-L*

301

78.34

2.35

71.6

90.1

Redness of subcutaneous fat (a*)

F-a*

301

3.50

0.00

1.3

0.6

Yellowness of subcutaneous fat (b*)

F-b*

301

7.84

1.10

5.3

10.8

Subcutaneous fat area, cm²

SFA at 45r

280

81.95

15.70

47.5

131.7

Intermuscular fat area, cm²

IFA at 45r

280

76.81

16.27

33.2

124.8

All fat area, cm²

ALLFA at 45r

280

158.80

27.00

84.8

235.0

Subcutaneous fat area, cm²

SFA at HBL

280

64.78

14.41

24.1

116.8

Intermuscular fat area, cm²

IFA at HBL

280

55.79

13.49

23.4

101.9

All fat area, cm²

ALLFA at HBL

280

120.60

25.54

57.6

218.8