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Table 1 Phenotypic means and standard deviations (SD) of the four analyzed traits in purebreds and crossbreds from the WA and BD lines

From: Using egg production longitudinal recording to study the genetic background of resilience in purebred and crossbred laying hens

Traits Type WA line BD line
Mean SD Mean SD
EP Purebred 371 51 347 69
Crossbred 368 24 341 36
LNVAR Purebred − 0.81 0.94 − 0.33 1.09
Crossbred − 2.32 0.73 − 1.84 0.64
SKEW Purebred − 1.51 1.03 − 1.20 1.15
Crossbred − 0.58 0.65 − 0.40 0.63
AUTO-R Purebred 0.21 0.24 0.36 0.29
Crossbred 0.19 0.27 0.34 0.23
  1. EP total number of eggs laid per layer between 25 and 83 weeks of age, LNVAR natural logarithm of the variance of the deviations between the observed phenotype and the average of the batch, SKEW skewness of the distribution of these deviations, AUTO-R lag-one autocorrelation of these deviations