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.