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Table 10 Estimates of genetic correlations between resilience indicators and egg production traits

From: The genetics of resilience and its relationships with egg production traits and antibody traits in chickens

  

Period

Full

Early

25–83

83-end

White

ln(variance)

25–83

− 0.82 (0.02)

0.05 (0.05)

− 0.72 (0.04)

− 0.88 (0.02)

83-end

− 0.62 (0.05)

0.10 (0.05)

− 0.43 (0.06)

− 0.81 (0.03)

Skewness

25–83

0.11 (0.08)

− 0.15 (0.06)

− 0.05 (0.09)

0.33 (0.08)

83-end

a

a

a

a

Autocorrelation

25–83

− 0.04 (0.07)

− 0.06 (0.06)

0.25 (0.09)

− 0.23 (0.07)

83-end

− 0.16 (0.08)

− 0.07 (0.07)

− 0.03 (0.09)

− 0.22 (0.08)

Brown

ln(variance)

25–83

− 0.84 (0.03)

− 0.14 (0.07)

− 0.83 (0.04)

− 0.77 (0.04)

83-end

− 0.46 (0.08)

0.18 (0.07)

− 0.42 (0.09)

− 0.59 (0.07)

Skewness

25–83

0.53 (0.14)

− 0.21 (0.11)

0.49 (0.15)

0.70 (0.11)

83-end

− 0.95 (0.04)

0.06 (0.07)

− 0.91 (0.05)

− 0.99 (0.02)

Autocorrelation

25–83

0.22 (0.10)

− 0.12 (0.08)

0.38 (0.11)

− 0.02 (0.09)

83-end

− 0.25 (0.10)

− 0.04 (0.09)

− 0.11 (0.11)

− 0.42 (0.09)

  1. Estimates of genetic correlations with standard errors (in parentheses) between the resilience indicators ln(variance), skewness, and autocorrelation based on average batch production for the same life periods with 1-week-intervals and egg production traits for the full production cycle (i.e. all eggs between start and end), the early production cycle (i.e. between start and 25 weeks of age), the 'traditional' production cycle (i.e. between 25 and 83 weeks of age), and the time period after the 'traditional' production cycle (i.e. between 83 weeks of age and end) for White (top) and Brown (bottom, italic)
  2. aNot tested, because the resilience indicator trait was not heritable (i.e. not significantly different from zero)