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Table 2 Estimates of genetic parameters for survival time in three crossbred layer lines using STM

From: The genetic architecture of socially-affected traits: a GWAS for direct and indirect genetic effects on survival time in laying hens showing cannibalism

  W1 * WA W1 * WB W1 * WC
\(\sigma_{A}^{2}\) 576 ± 326 1415 ± 583 5310 ± 1386
\(\sigma_{c}^{2}\) 763 ± 173 1813 ± 287 1832 ± 374
\(\sigma_{P}^{2}\) 7645 ± 260 10,781 ± 389 15,102 ± 647
\(T^{2}\) 0.08 ± 0.04 0.13 ± 0.05 0.35 ± 0.08
  1. Estimates of genetic parameters are shown for survival time
  2. \(\sigma_{c}^{2} ,\sigma_{A}^{2} ,\sigma_{P}^{2}\), \(T^{2}\) are cage variance, genetic variance and phenotypic variance (\(\sigma_{P}^{2} = \sigma_{A}^{2} + \sigma_{c}^{2} + \sigma_{e}^{2}\)), \(T^{2} = \frac{{\sigma_{A}^{2} }}{{\sigma_{P}^{2} }}\) [37], respectively. All variances are in days