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Table 3 Estimates of direct heritability and pen1 variance ratios for immune traits and average daily gain2, 3

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

Trait: Direct h2 (s.e.) Pen variance/σ2 p
White blood cells 0.28 (0.08) NS
MNL 0.21 (0.09) 0.13 (0.04)*
PMNL 0.24 (0.10) 0.10 (0.04)*
PBML subsets:   
   CD4+ 0.69 (0.09) 0.05 (0.03)*
   CD8α+ 0.46 (0.10) NS
CD4+CD8α+ 0.37 (0.11) NS
CD4+CD8α- 0.75 (0.13) NS
   CD8αβ+ 0.45 (0.11) NS
   CD11R1+ total 0.35 (0.09) NS
CD11R1+CD8α+ 0.38 (0.10) NS
CD11R1+CD8α- 0.25 (0.09) 0.10 (0.05)*
   γδ+ T cell 0.39 (0.09) NS
   B cells 0.31 (0.09) NS
   Monocytes 0.28 (0.09) NS
   CD14+ 0.20 (0.11) NS
   CD16+ 0.09 (0.08) 0.08 (0.04)*
APP, μg/mL   
   Haptoglobin 0.23 (0.09) 0.07 (0.04)*
   TTR 0.21 (0.15) 0.25 (0.08)*
   CRP 0.15 (0.08) 0.07 (0.04)*
   AGP 0.48 (0.10) 0.08 (0.04)*
ADG, kg/d 0.25 (0.06) NS
Ag density:   
   all CD8α+ cells 0.73 (0.17) NS
   CD8α+ "dim" cells 0.93 (0.16) NS
   CD8α+ "bright" cells 0.73 (0.16) NS
   all CD8β+ cells 0.85 (0.15) NS
  1. 1 Pen was fitted as a random effect for all traits, but the pen variance is only presented when significant. For transthyretin the pen variance was not significant, and the maternal variance as a proportion of phenotypic variance is presented instead. Maternal effects were not significant and were not fitted for all other traits.
  2. 2Mean pig weight at time of measurement was 90 kg.
  3. 3 White blood cells expressed as no. cells × 106/mL, PBML sub-sets expressed as proportion of mononuclear leucocytes and antigen density expressed as the number of antibody binding sites per cell (see Materials and Methods).
  4. * p < 0.05.