Table 4 Effects of chronic heat stress on the meat qualities of pectoralis major (PM) muscle in broiler chickens

6.28 ± 0.10

6.24 ± 0.18

6.28 ± 0.17

5.86 ± 0.04^a

5.74 ± 0.02^b

5.83 ± 0.09^a

42.58 ± 0.64

43.42 ± 1.58

43.79 ± 1.21

1.56 ± 0.20

1.51 ± 0.29

1.44 ± 0.18

3.98 ± 0.10

3.85 ± 0.49

4.35 ± 0.58

2.08 ± 0.14^b

2.39 ± 0.12^a

1.97 ± 0.05^b

12.10 ± 1.36

12.17 ± 0.95

12.87 ± 2.44

15.96 ± 2.02^b

19.56 ± 0.81^a

12.79 ± 1.86^c

6.28 ± 0.13

6.37 ± 0.09

6.25 ± 0.11

5.98 ± 0.04^a

5.92 ± 0.06^b

5.98 ± 0.03^a

43.55 ± 0.76

45.08 ± 0.78

43.4 ± 1.08

1.84 ± 0.31^a

0.86 ± 0.15^b

1.68 ± 0.23^a

3.52 ± 0.49

3.67 ± 0.41

4.19 ± 0.61

1.82 ± 0.10^b

2.16 ± 0.18^a

1.93 ± 0.11^b

15.00 ± 0.71^b

17.59 ± 0.47^a

14.70 ± 0.83^b

18.76 ± 0.93^b

20.88 ± 1.29^a

18.49 ± 1.13^b