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Table 7 Meat quality characteristics from the replicate floor trials

From: SNP-based breeding for broiler resistance to ascites and evaluation of correlated production traits

Item n   24-h Color Shear
Drip loss1, g L*(D65) a*(D65) b*(D65) 24-h pH Force (N) Area 1:3 Peaks
Main effect of trial
 Floor1 198 2.052 52.34 2.050a 8.932a 5.946a 14.04 187.7 8.823b
 Floor2 197 2.165 52.72 1.776b 8.607b 5.857b 14.26 191.9 9.545a
 SEM   0.116 0.19 0.071 0.108 0.013 0.23 2.7 0.182
Main effect of genetic line
 MAS 196 2.161 53.03a 1.805b 8.956a 5.875b 13.85b 184.0b 8.981
 REL 199 2.047 52.04b 2.011a 8.582b 5.926a 14.45a 195.6a 9.384
 SEM   0.114 0.19 0.069 0.107 0.013 0.22 2.6 0.179
Main effect of sex
 Male 198 1.612b 51.50b 1.923 8.384b 5.935a 13.76b 186.0b 8.859b
 Female 197 2.617a 53.56a 1.893 9.157a 5.866b 14.55a 193.7a 9.512a
 SEM   0.125 0.18 0.071 0.106 0.013 0.22 2.7 0.187
Trial × Line
 Floor1 × MAS 97 2.117 52.89 1.905 9.093 5.925 14.32ab 189.1b 8.521
 Floor1 × REL 101 1.990 51.79 2.190 8.774 5.966 13.78b 186.5b 9.113
 Floor2 × MAS 99 2.204 53.16 1.706 8.821 5.825 13.39b 179.0b 9.427
 Floor2 × REL 98 2.106 52.30 1.824 8.389 5.885 15.14a 204.9a 9.667
 SEM   0.166 0.27 0.103 0.155 0.018 0.33 3.9 0.268
Trial × Sex
 Floor1 × Male 101 1.460 51.12 2.152 8.469 5.980 13.28b 180.4b 8.441
 Floor1 × Female 97 2.696 53.56 1.945 9.414 5.910 14.83a 195.3a 9.229
 Floor2 × Male 97 1.771 51.89 1.682 8.295 5.888 14.26ab 191.9ab 9.299
 Floor2 × Female 100 2.542 53.56 1.842 8.908 5.822 14.28ab 192.1ab 9.783
 SEM   0.179 0.27 0.113 0.149 0.019 0.33 3.9 0.290
Line × Sex
 MAS × Male 98 1.670 51.80 1.855 8.411b 5.916 13.62 180.7 8.699
 MAS × Female 98 2.663 54.25 1.754 9.506a 5.833 14.09 187.3 9.265
 REL × Male 100 1.556 51.20 1.992 8.356b 5.954 13.91 191.3 9.018
 REL × Female 99 2.570 52.88 2.029 8.811b 5.898 15.01 200.0 9.758
 SEM   0.178 0.26 0.104 0.156 0.019 0.32 4.0 0.264
P-values
 Trial   0.629 0.113 0.003 0.017 < 0.001 0.457 0.239 0.002
 Genetic Line   0.515 < 0.001 0.037 0.009 0.003 0.045 0.001 0.060
 Sex   < 0.001 < 0.001 0.803 < 0.001 < 0.001 0.009 0.031 0.016
 Trial × Line   0.908 0.611 0.367 0.757 0.622 < 0.001 < 0.001 0.378
 Trial × Sex   0.128 0.112 0.052 0.236 0.848 0.010 0.040 0.681
 Line × Sex   0.967 0.112 0.456 0.025 0.473 0.287 0.778 0.555
 Trial × Line × Sex   0.096 0.794 0.290 0.694 0.766 0.803 0.956 0.667
  1. Abbreviations: Floor1 Floor cohort 1, Floor2 Floor cohort 2, MAS marker-assisted selection line, REL Relaxed (control) line
  2. 1: Drip loss calculated as the difference in breast weight before and after 24 h chill
  3. Item values with different superscript letters in a column indicates significant difference (p < 0.05) in that trait or effect