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Table 3 Estimates of genetic parameters 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 AFE EN1 EN2 EN3 EN4 TEN
AFE 0.24(0.054) −0.96(0.020) 0.011(0.19) 0.025(0.22) −0.0187(0.20) −0.37(0.18)
EN1 −0.88(0.0058 0.27(0.055) 0.19(0.18) 0.14(0.21) 0.16(0.19) 0.50(0.16)
EN2 −0.086(0.026) 0.20(0.025) 0.17(0.051) 0.87(0.12) 0.70(0.15) 0.81(0.11)
EN3 0.023(0.026) 0.080(0.026) 0.51(0.019) 0.093(0.038) 0.77(0.13) 0.85(0.072)
EN4 0.013(0.026) 0.058(0.026) 0.35(0.023) 0.66(0.015) 0.14(0.044) 0.87(0.072)
TEN −0.26(0.024) 0.39(0.022) 0.60(0.016) 0.88(0.0059) 0.82(0.0086) 0.12(0.043)
  1. Heritability on the diagonal, genetic correlations above the diagonal and phenotypic correlations down the diagonal, SE in parentheses. 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 onset of laying eggs to 354 d, respectively)