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Table 2 Estimates ± SE of genetic parameters for percent floor eggs and percent hens perching in two lines

From: Heritability of perching behavior and its genetic relationship with incidence of floor eggs in Rhode Island Red chickens

  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
  1. The analysis is based on weekly records and the average across the entire testing period