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Table 2 Estimates of SNP based heritabilities (on the diagonal) and of genetic (above the diagonal) and phenotypic correlations between egg production traits

From: Genome-wide association analysis of egg production performance in chickens across the whole laying period

Traits

AFE

EN1

EN2

EN3

EN4

EN5

Total-EN

AFE

0.40 (0.05)

–

0.14 (0.21)

−0.02 (0.15)

−0.13 (0.15)

− 0.15 (0.15)

−0.53 (0.14)

EN1

−0.95

0.39 (0.05)

−0.19 (0.21)

0.03 (0.15)

0.12 (0.15)

0.10 (0.15)

0.51 (0.14)

EN2

0.19

−0.19

0.07 (0.04)

0.64 (0.25)

0.35 (0.26)

−0.16 (0.29)

0.10 (0.29)

EN3

0.08

−0.08

0.24

0.19 (0.05)

0.81 (0.11)

0.38 (0.17)

0.58 (0.15)

EN4

0.03

−0.04

0.14

0.47

0.18 (0.05)

0.77 (0.11)

0.87 (0.07)

EN5

0.06

−0.06

0.12

0.32

0.53

0.18 (0.05)

0.88 (0.05)

Total-EN

−0.15

0.16

0.18

0.51

0.78

0.87

0.14 (0.05)

  1. AFE: age at first egg; EN1, EN2, EN3, EN4, EN5: total egg numbers in each of five stages (from onset of laying eggs to 23 weeks, from 23 to 37 weeks, from 37 to 50 weeks, from 50 to 61 weeks and from 61 to 80 weeks); Total-EN: total egg number from onset of laying eggs to 80 weeks