项目

对照组

I组

II组

III组

P值

样本数

6

6

6

6

屠前体重/kg

110.07 ± 6.64

106.80 ± 4.93

108.53 ± 6.40

106.22 ± 5.41

0.768

屠宰率/%

71.79 ± 3.68^a

66.12 ± 1.49^b

68.94 ± 3.11^ab

67.44 ± 3.34^b

0.024

瘦肉率/%

59.57 ± 3.80

56.43 ± 3.26

55.23 ± 6.57

53.30 ± 3.06

0.310

背膘厚/mm

31.19 ± 1.21

27.05 ± 1.51

26.52 ± 1.68

24.66 ± 1.90

0.297

腿臀比例/%

29.76 ± 1.93

29.31 ± 1.41

28.62 ± 1.07

28.18 ± 1.85

0.787

肉色L值MC L

38.14 ± 1.49

37.70 ± 0.80

38.57 ± 1.19

38.05 ± 1.75

0.856

肉色a值MC a

11.61 ± 0.73^b

13.90 ± 0.80^ab

14.58 ± 1.01^a

13.38 ± 0.74^ab

0.095

肉色b值MC b

6.11 ± 0.46^c

6.72 ± 0.45^abc

6.91 ± 0.79^a

6.90 ± 0.48^ab

0.078

pH₁ value

6.36 ± 0.28

6.26 ± 0.21

6.17 ± 0.39

6.29 ± 0.23

0.543

pH₂₄ value

5.73 ± 0.29

5.86 ± 0.32

5.89 ± 0.26

5.93 ± 0.29

0.680

滴水损失DL/%

1.98 ± 0.49

1.76 ± 0.79

1.39 ± 0.85

1.15 ± 0.33

0.384

失水率WLR/%

8.28 ± 0.86

7.72 ± 0.69

7.66 ± 0.79

6.28 ± 0.73

0.501

嫩度(kg·f)

60.27 ± 8.23

52.94 ± 8.58

47.63 ± 7.95

47.48 ± 6.69

0.137