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Table 5 Direct heritability (h2) estimates for acute phase proteins and average daily gain for SPF and non-SPF pigs1

From: Traits associated with innate and adaptive immunity in pigs: heritability and associations with performance under different health status conditions

  SPF     Non-SPF    
Trait direct h2 (s.e.) Pen effect (s.e.) Genetic variance × 10-1 Residual variance × 10-1 direct h2 (s.e.) Pen effect (s.e.) Genetic variance × 10-1 Residual variance × 10-1
APP, μg/ml:         
haptoglobin 0.23 (0.14) 0.11 (0.05)* 1.10 3.20 0.20 (0.11) NS 0.84 3.20
TTR,2 0.28 (0.22) NS 0.24 0.36 0.12 (0.18) NS 0.11 0.51
CRP 0.20 (0.14) NS 1.40 5.60 0.13 (0.10) 0.11 (0.06)* 0.93 5.30
AGP 0.49 (0.14) 0.08 (0.05)* 0.59 0.52 0.48 (0.14) NS 0.56 0.51
ADG, kg/d 0.40 (0.07) 0.09 (0.03)* 0.07 0.09 0.13 (0.07) NS 0.02 0.15
  1. 1Traits for which the heritability differed significantly between SPF and non-SPF farms are shown bold (* p < 0.05).
  2. 2For transthyretin (TTR), both pen and dam effects were fitted