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Table 5 Organ weights from the replicate floor trials

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

Item n Heart Liver Lungs Spleen
Weight, g Yield1, % Weight, g Yield, % Weight, g Yield, % Weight, g Yield, %
Main effect of trial
Floor1 95 14.95 0.626b 50.91a 2.108 15.78 0.663 2.878 0.122b
Floor2 100 15.17 0.666a 47.51b 2.077 15.47 0.680 3.083 0.135a
SEM   0.30 0.009 1.05 0.034 0.36 0.013 0.079 0.003
Main effect of genetic line
MAS 98 15.07 0.643 49.78 2.108 15.43 0.663 3.001 0.129
REL 97 15.06 0.651 48.58 2.076 15.82 0.681 2.965 0.128
SEM   0.31 0.009 0.98 0.030 0.37 0.013 0.080 0.003
Main effect of sex
Male 98 17.01a 0.660a 51.42a 1.983b 17.16a 0.664 3.176a 0.123
Female 97 13.10b 0.633b 46.88b 2.208a 14.09b 0.680 2.788b 0.134
SEM   0.20 0.008 1.05 0.032 0.34 0.013 0.083 0.003
Trial × Line
Floor1 × MAS 48 15.02 0.624 51.40 2.111 15.78 0.661 2.808 0.118
Floor1 × REL 47 14.88 0.629 50.43 2.105 15.78 0.665 2.951 0.125
Floor2 × MAS 50 15.11 0.660 48.18 2.106 15.09 0.664 3.186 0.139
Floor2 × REL 50 15.24 0.671 46.84 2.048 15.85 0.696 2.978 0.130
SEM   0.49 0.013 1.57 0.050 0.57 0.019 0.114 0.004
Trial × Sex
Floor1 × Male 48 17.00 0.638 52.54 1.960b 17.51 0.655 3.098 0.116
Floor1 × Female 47 12.88 0.615 49.26 2.269a 14.05 0.671 2.655 0.127
Floor2 × Male 50 17.02 0.681 50.34 2.006b 16.81 0.672 3.250 0.129
Floor2 × Female 50 13.31 0.650 44.61 2.151a 14.13 0.689 2.914 0.140
SEM   0.31 0.013 1.72 0.050 0.57 0.022 0.122 0.004
Line × Sex
MAS × Male 48 17.19 0.663 52.28 1.999 17.01 0.654 3.231 0.124
MAS × Female 50 13.02 0.623 47.33 2.220 13.95 0.670 2.780 0.134
REL × Male 50 16.83 0.657 50.58 1.969 17.31 0.672 3.122 0.122
REL × Female 47 13.19 0.644 46.45 2.194 14.22 0.690 2.798 0.134
SEM   0.32 0.012 1.50 0.049 0.50 0.019 0.133 0.005
P-values
Trial   0.434 < 0.001 0.009 0.348 0.470 0.332 0.052 0.014
Genetic Line   0.999 0.466 0.357 0.508 0.370 0.283 0.731 0.446
Sex   < 0.001 0.018 < 0.001 < 0.001 < 0.001 0.322 < 0.001 0.556
Trial × Line   0.646 0.707 0.888 0.396 0.384 0.447 0.116 0.130
Trial × Sex   0.469 0.690 0.347 0.032 0.364 0.964 0.636 0.610
Line × Sex   0.363 0.284 0.752 0.948 0.971 0.986 0.580 0.978
Trial × Line × Sex   0.284 0.396 0.601 0.660 0.396 0.692 0.806 0.652
  1. Abbreviations: Floor1 Floor cohort 1, Floor2 Floor cohort 2, MAS marker-assisted selection line, REL Relaxed (control) line
  2. 1: Yields calculated based on back-dock live weight
  3. Item values with different superscript letters in a column indicates significant difference (p < 0.05) in that trait or effect