Table 2 Estimates ± SE of genetic parameters for percent floor eggs and percent hens perching in two lines
Weekly records | Average | |||
|---|---|---|---|---|
Line 1 | Line 2 | Line 1 | Line 2 | |
Heritability % perching | 0.22 ± 0.04 | 0.07 ± 0.05 | 0.66 ± 0.09 | 0.24 ± 0.16 |
Heritability % floor eggs | 0.52 ± 0.05 | 0.45 ± 0.05 | 0.71 ± 0.08 | 0.66 ± 0.09 |
Repeatability % perching | 0.33 ± 0.03 | 0.26 ± 0.03 | 0.79 ± 0.03 | 0.59 ± 0.07 |
Repeatability % floor eggs | 0.71 ± 0.03 | 0.66 ± 0.03 | 0.85 ± 0.03 | 0.82 ± 0.03 |
Genetic correlation | − 0.26 ± 0.14 | − 0.19 ± 0.27 | − 0.06 ± 0.20 | − 0.20 ± 0.36 |
Permanent environmental correlation | − 0.04 ± 0.07 | − 0.14 ± 0.07 | − 0.09 ± 0.14 | − 0.15 ± 0.17 |
Residual correlation | 0.02 ± 0.01 | 0.01 ± 0.01 | − 0.02 ± 0.01 | − 0.11 ± 0.01 |
Phenotypic correlation | − 0.09 ± 0.05 | − 0.05 ± 0.04 | − 0.08 ± 0.12 | − 0.13 ± 0.12 |