Additional File 1A Variables with Significant Contribution to the Predictive Power Of

Additional File 1aVariables with significant contribution to the predictive power of stress response trait1 models after stepwise model selection2

Variable / F-value (PrF)
Cort1 / Cort2 / Cort3 / Cort4 / Blup4 / Ebv
Tank / 4.02 (0.046) / 11.04 (0.001) / NS / NS / NS / 13.46 (0.0003)
Weight1 / 11.08 (0.001) / / / / 27.89 0(.0001) / 47.62 (0.0001)
Weight2 / 3 / NS / / / NS / NS
Weight3 / / / 11.28 (0.001) / / NS / NS
Weight4 / / / / 6.38 (0.012) / NS / NS
Length1 / NS4 / / / / NS / NS
Length2 / / NS / / / NS / NS
Length3 / / / / / NS / 5.87 (0.016)
Length4 / / / / NS / NS / NS

1The stress response traits: Repeated measurements of plasma cortisol (cort1, cort2, cort3 and cort4), and stress response derived traits (Blup4 and Ebv).

2The stepwise model selection was performed with SAS Procedure REG (SAS, 2007) using significance level (SL) of SLENTRY = 0.50 and SLSTAY = 0.05.

3The indicates the variable was not included in the model to fit.

4The NS indicates the variable had non-significant (P > 0.05) contribution on the stress response trait model.

Additional File 1bAssessing the family contribution to the predictive power of weight and length models2

Variable / R-Square / Mean / Coefficient variation / Family / Tank(Family)
DF / F-value / Pr > F / DF / F-value / Pr > F
Weight1 / 0.35 / 92.05 / 18.92 / 1 / 58.34 / 0.0001 / 58 / 2.40 / 0.0001
Weight2 / 0.20 / 132.57 / 22.81 / 1 / 30.14 / <0.0001 / 58 / 1.29 / 0.0832
Weight3 / 0.17 / 191.27 / 24.14 / 1 / 6.39 / 0.0119 / 58 / 1.25 / 0.1117
Weight4 / 0.15 / 267.30 / 25.50 / 1 / 1.22 / 0.2702 / 58 / 1.08 / 0.3267
Length1 / 0.35 / 184.78 / 6.11 / 1 / 67.98 / <0.0001 / 58 / 2.29 / <0.0001
Length2 / 0.19 / 203.58 / 7.49 / 1 / 29.26 / <0.0001 / 58 / 1.12 / 0.2671
Length3 / 0.64 / 205.61 / 10.77 / 1 / 0.23 / 0.6315 / 58 / 12.19 / <0.0001
Length4 / 0.12 / 257.32 / 9.41 / 1 / 0.02 / 0.8879 / 58 / 0.92 / 0.6501

1The family contribution to the predictive power of weight and length models2was assessed with SAS Procedure GLM (SAS, 2007).

2The model term “Tank(Family)” indicates the variable Tank was nested within Family.