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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