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Table 2 Effects of melatonin treatment on meat quality indices of Inner Mongolian cashmere goats1

From: Effects of melatonin implantation on carcass characteristics, meat quality and tissue levels of melatonin and prolactin in Inner Mongolian cashmere goats

Items

Muscle

Group C

Group MM

Group MJ

pH452

Longissimus dorsi

6.04 ± 0.12

6.06 ± 0.23

6.03 ± 0.11

Biceps femoris

6.47 ± 0.17

6.34 ± 0.10

5.83 ± 0.49

Gluteus

6.54 ± 0.10

6.40 ± 0.10

6.36 ± 0.10

Meat color3

L*

Longissimus dorsi

37.05 ± 1.06

32.30 ± 0.96

34.42 ± 1.71

Biceps femoris

36.58 ± 2.05

33.35 ± 1.20

35.70 ± 1.69

Gluteus

33.97 ± 1.16

35.47 ± 3.19

33.65 ± 1.71

a*

Longissimus dorsi

14.31 ± 0.84

15.29 ± 1.23

15.59 ± 0.82

Biceps femoris

16.75 ± 0.97

17.28 ± 1.51

18.78 ± 0.73

Gluteus

17.46 ± 1.29

15.94 ± 2.03

18.70 ± 1.23

b*

Longissimus dorsi

4.78 ± 0.44

4.61 ± 0.62

3.99 ± 0.34

Biceps femoris

5.62 ± 0.34

5.02 ± 1.14

3.95 ± 0.70

Gluteus

4.82 ± 0.65

5.08 ± 0.78

5.22 ± 0.55

Shear force, kgf4

Longissimus dorsi

5.10 ± 0.05a

5.32 ± 0.10a

5.50 ± 0.16b

Biceps femoris

7.24 ± 0.07

7.42 ± 0.12

7.54 ± 0.13

Gluteus

5.51 ± 0.11

5.54 ± 0.11

5.64 ± 0.07

Water loss rate, %

Longissimus dorsi

23.5 ± 0.39a

24.38 ± 0.44a

26.82 ± 0.36b

Biceps femoris

19.27 ± 0.60a

20.98 ± 0.28ab

21.79 ± 0.16b

Gluteus

24.98 ± 0.50

25.15 ± 0.61

26.29 ± 0.22

Cooking yield, %

Longissimus dorsi

67.21 ± 0.32

67.53 ± 0.37

67.27 ± 0.48

Biceps femoris

63.01 ± 0.51

63.25 ± 0.44

62.39 ± 0.35

Gluteus

65.51 ± 0.38a

65.39 ± 0.26a

64.11 ± 0.27b

Moisture content, %

Longissimus dorsi

72.90 ± 0.40

72.73 ± 0.33

72.77 ± 0.49

Biceps femoris

71.95 ± 0.38

72.60 ± 0.39

72.70 ± 0.43

Gluteus

72.39 ± 0.37

72.43 ± 0.36

72.60 ± 0.44

CP5, %

Longissimus dorsi

21.42 ± 0.11a

21.22 ± 0.24a

19.86 ± 0.36b

Biceps femoris

21.45 ± 0.18a

21.24 ± 0.21a

20.32 ± 0.39b

Gluteus

21.37 ± 0.19a

20.88 ± 0.39ab

20.02 ± 0.31b

EE6, %

Longissimus dorsi

11.06 ± 0.32

10.30 ± 0.37

9.95 ± 0.36

Biceps femoris

11.28 ± 0.43

11.27 ± 0.25

10.28 ± 0.36

Gluteus

11.45 ± 0.34a

10.98 ± 0.29a

9.80 ± 0.25b

  1. 1 Values are means of six replicates per treatment. Group C = controls, Group MM = melatonin implanted in May, Group MJ = melatonin implanted in June
  2. 2 pH45 represents pH value for muscles 45 min after slaughter
  3. 3 L* = lightness, a* = redness, b* = yellowness
  4. 4 kgf = kilogram-force. 1 kgf = 9.80665 N
  5. 5 CP = crude protein content
  6. 6 EE = ether extract content
  7. a, b Mean in the same row with different superscripts are significantly different (P < 0.05)