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Table 5 Effects of chronic heat stress on the textural properties of pectoralis major (PM) muscle in broiler chickens

From: Transcriptome analysis reveals the mechanism of chronic heat stress on meat quality of broilers

Items

Treatments

NC

HS

PF

After 7 d of heat stress

  Hardness, N

26.11 ± 3.5b

31.39 ± 2.17a

26.15 ± 1.13b

  Cohesiveness, -

0.45 ± 0.05a

0.41 ± 0.05b

0.45 ± 0.06a

  Springiness, mm

2.62 ± 0.17a

2.35 ± 0.21b

2.40 ± 0.16b

  Gumminess, N

13.11 ± 1.58

15.38 ± 2.81

12.83 ± 3.55

  Chewiness, mJ

34.08 ± 4.44

37.71 ± 6.59

31.14 ± 6.71

After 14 d of heat stress

  Hardness, N

23.99 ± 3.52b

29.53 ± 1.87a

24.50 ± 3.48b

  Cohesiveness, -

0.41 ± 0.02

0.40 ± 0.03

0.41 ± 0.02

  Springiness, mm

3.13 ± 0.26a

2.58 ± 0.18b

3.19 ± 0.24a

  Gumminess, N

11.88 ± 0.90

12.59 ± 2.43

12.60 ± 3.15

  Chewiness, mJ

35.84 ± 3.25

33.71 ± 3.73

33.71 ± 3.94

  1. The result represents the mean value ± standard deviation (SD) (n = 6). NC normal control group, HS heat stress group, PF pair-fed group
  2. a,bDifferent letters represent significant differences (P < 0.05)