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Table 2 Live performance data from the replicate floor trials 

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

Item n    d49–54
d0, g/bird d14, g/bird d28, g/bird d42, g/bird d49, g/bird d54, g/bird BWG, g/bird FI, g/bird FCR, g:g
Main effect of trial
 Floor1 40 38.00a 255.0a 934.8 1987a 2522a 2888a 365.5 0.932 2.566
 Floor2 40 36.65b 236.7b 947.7 1949b 2458b 2822b 368.3 0.937 2.560
 SEM   0.15 2.1 6.3 13 16 20 4.6 0.007 0.021
Main effect of genetic line
 MAS 40 37.30 246.4 940.3 1976 2507 2875 372.9a 0.935 2.512b
 REL 40 37.35 245.3 942.2 1960 2474 2835 361.0b 0.933 2.613a
 SEM   0.19 2.8 6.4 13 17 20 4.3 0.007 0.021
Trial × Line
 Floor1 × MAS 20 38.06 252.4a 927.9 1993 2541 2909 368.4 0.928 2.523
 Floor1 × REL 20 37.94 257.6a 941.8 1981 2504 2867 362.5 0.935 2.609
 Floor2 × MAS 20 36.54 240.4b 952.6 1960 2473 2842 377.7 0.943 2.500
 Floor2 × REL 20 36.76 233.0b 942.7 1939 2444 2803 359.5 0.931 2.618
 SEM   0.22 3.2 9.7 21 26 31 7.1 0.010 0.031
P-values
 Trial   < 0.001 < 0.001 0.142 0.038 0.006 0.017 0.585 0.583 0.773
 Genetic line   0.800 0.674 0.819 0.358 0.155 0.137 0.036 0.812 < 0.001
 Trial × Line   0.393 0.019 0.174 0.801 0.872 0.946 0.279 0.303 0.536
  1. Abbreviations: Floor1 Floor cohort 1, Floor2 Floor cohort 2, MAS marker-assisted selection line, REL Relaxed (control) line, d day, BWG body weight gain, FI feed intake, FCR feed conversion ratio
  2. Item values with different superscript letters in a column indicates significant difference (p < 0.05) in that trait or effect