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Table 2 Descriptive statistics for egg production traits in 627 hens of line W2

From: A significant quantitative trait locus on chromosome Z and its impact on egg production traits in seven maternal lines of meat-type chicken

Traits Mean SD CV, % Min Max
AFE 174.75 7.94 4.55 159 200
EN1 16.15 6.93 42.89 1 36
EN2 25.42 3.92 15.41 2 51
EN3 54.97 10.23 18.61 5 80
EN4 28.21 8.71 30.86 1 47
TEN 122.94 23.51 19.12 42 180
  1. AFE represents age at first egg; EN1, EN2, EN3, EN4, and TEN represent total egg numbers in each of the five stages (from onset of laying eggs to 195 d, from 196 to 227 d, from 228 to 307 d, from 308 to 354 d, and from the onset of laying eggs to 354 d, respectively); SD represents standard deviation; CV represents coefficient of variation