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Table 3 Basic statistics of recorded chicken performance data

From: Genome-wide association studies targeting the yield of extraembryonic fluid and production traits in Russian White chickens

Traita Observations Min Max Mean SDb Heritability ± SEc
EW, g 146 43 61 50.1 3.4 0.53 ± 0.03
EM, g 146 5 11 9.2 0.9 N/Ad
BW, g 146 1175 2360 1681.4 197.2 0.47 ± 0.01e
YEF, ml 146 5 15 9.5 1.7 0.17 ± 0.01
REFEW 146 0.1 0.3 0.2 0.03 N/Ad
AFE, days 146 161 186 167.1 4.9 0.36 ± 0.01e
EL 146 76 194 142.5 20.8 0.21 ± 0.01
  1. aTraits studied: EW egg weight, EM embryo mass, BW body weight, YEF yield of extraembryonic fluid, REFEW ratio of extraembryonic fluid to egg weight, AFE age at first egg, EL number of eggs
  2. bSD standard deviation
  3. cSE standard error
  4. dN/A data not available
  5. eRetrieved from data in Niknafs et al. [50]