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Table 1 Summary statistics of the phenotypes available for 16 traitsa in each generation (G)

From: Effects of number of training generations on genomic prediction for various traits in a layer chicken population

Gen   eCO eEW eC3 eE3 eSM eAH eYW ePD ePS lCO lEW lBW lAH lYW lPD lPS
G1 N 436 436 410 410 440 436 0 440 436 414 414 440 414 0 414 411
  Mean 70.9 56.3 69.0 45.4 153.6 7.3 0 81.1 1604.9 59.4 62.1 2.1 5.6 0 67.5 1383.5
  SD 9.1 4.5 9.1 4.7 11.1 0.8 0 12.9 49.4 10.1 4.9 0.3 0.9 0 14.3 30.6
G2 N 1669 1669 1667 1667 1669 1667 1657 1669 1668 588 588 588 586 582 588 588
  Mean 69.6 55.2 70.6 44.3 151.9 7.1 14.9 81.6 1509.0 66.4 60.5 2.0 6.5 17.9 77.7 1601
  SD 8.5 4.8 8.6 4.7 8.5 0.9 1.7 12.4 93.2 8.5 4.7 0.3 0.9 1.5 14.5 59.2
G3 N 2738 2737 2729 2729 2738 2737 2728 2738 2738 649 649 647 649 646 635 649
  Mean 73.3 56.8 74.6 43.6 149.3 7.1 15.2 80.9 1425.0 72.4 61.5 2.0 6.6 17.8 77.3 1435.4
  SD 7.7 4.6 7.9 4.5 7.4 1.0 1.1 11.3 38.4 7.6 4.6 0.3 0.9 1.2 12.1 25.0
G4 N 2771 2772 2753 2752 2772 2771 2736 2772 2770 794 794 793 794 793 784 794
  Mean 71.4 57.5 74.4 46.7 156.3 7.5 15.1 82.4 1388.3 66.9 62.2 2.0 7.2 17.8 80.6 1399.8
  SD 8.2 4.8 7.7 5.1 9.9 1.0 1.1 11.3 39.9 9.3 4.5 0.2 0.9 1.3 12.1 40.6
G5 N 2964 2964 2952 2951 2964 2963 2958 2965 2964 782 782 781 782 781 778 782
  Mean 76.1 58.0 75.4 47.3 159.8 7.4 15.3 84.9 1494.9 72.9 63.5 2.0 7.2 18.1 82.4 1508.6
  SD 7.5 4.9 7.9 4.6 6.2 1.0 1.2 9.8 42.5 7.9 4.7 0.3 0.9 1.4 11 36.4
G6 N 2117 2117 2103 2103 2117 2116 2115 2117 2115 769 768 759 769 768 755 769
  Mean 77.2 57.2 78.1 45.2 147.6 7.4 15.1 83.3 1459.9 70.9 62.7 1.8 6.9 18.1 80.0 1496.1
  SD 7.7 4.9 7.9 4.7 7.8 1.0 1.2 10.3 42.8 8.6 4.8 0.3 0.9 1.4 11.0 36.6
G7 N 290 290 278 278 290 290 290 290 289 280 280 277 280 275 274 280
  Mean 78.1 59.2 80.2 45.0 148.9 7.7 15.4 83.1 1492.6 71.6 63.3 1.8 7.5 17.9 77.4 1487.8
  SD 7.3 4.8 7.6 4.5 7.8 1.1 1.1 9.2 41.7 8.6 4.9 0.3 0.9 1.4 11.7 35.0
G8 N 251 252 275 275 272 252 250 263 249 270 270 271 270 263 262 268
  Mean 80.5 56.8 79.8 44.2 142.0 7.9 15.2 80.8 1451.6 71.7 61.2 1.8 7.4 17.8 76.9 1423.9
  SD 7.5 4.9 7.5 4.6 5.6 1.1 1.35 8.0 39.8 8.1 4.9 0.3 1.1 1.5 11.0 35.9
G9 N 300 300 299 299 302 300 296 302 300 292 292 294 292 285 291 292
  Mean 79.2 59.1 82.5 44.1 141.9 8.4 15.9 83.2 1498.6 78.8 61.8 2.0 8.1 17.4 78.8 1519.2
  SD 7.7 4.5 7.7 4.7 7.6 1.0 1.18 10.1 37.6 8.3 5.1 0.2 1.1 1.5 10.1 39.1
G10 N 724 724 828 828 850 723 708 850 723 835 829 850 835 828 826 832
  Mean 83.3 58.6 79.3 46.2 146.5 8.0 14.9 87.9 1474.9 75.8 62.8 2.0 8 17.5 80.0 1471.6
  SD 8.0 4.4 7.8 5.0 7.9 1.1 1.19 9.4 45.9 7.8 4.5 0.2 1.1 1.3 11.7 49.4
G11 N 899 899 891 891 899 899 898 899 896 856 856 867 856 850 899 855
  Mean 83.3 56.4 82.7 44.7 139.2 8.6 14.3 81.7 1514.1 77.8 61.0 2.0 7.7 17.3 77.6 1403.2
  SD 8.2 4.5 7.2 4.7 7.8 0.9 1.1 10.0 19.2 8.9 4.5 0.2 0.9 1.3 9.5 27.3
  1. aEarly (e) and late (l) CO (egg color, index units), EW (average weight of 3 to 5 eggs, g), C3 (color of first 3 eggs, index units), E3 (weight of first 3 eggs, g), AH (albumen height, mm), PD (egg production rate), PS (puncture score, g/s), and YW (yolk weight, g); eSM (age at sexual maturity, d); lBW (body weight, kg)