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. 2016 Jul 26;6:28836. doi: 10.1038/srep28836

Table 2. Genetic parameters for eggshell ultrastructure traits.

Traita EST ET MT MD
EST 0.39 (0.06) 0.96 (0.02) 0.60 (0.15) −0.29 (0.16)
ET   0.36 (0.06) 0.35 (0.20) −0.26 (0.18)
MT     0.17 (0.05) −0.26 (0.21)
MD       0.19 (0.05)

Diagonal: heritability estimates. Upper triangle: genetic correlations. Standard errors of the estimates are in parentheses.

aEST = eggshell thickness; ET = effective layer thickness; MT = mammillary layer thickness; MD = mammillary density.