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Table 4 Direct heritability (h2) estimates for total and differential WBC and PBML subsets for SPF and non-SPF pigs1, 2,

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

Farm

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

WBC

0.29 (0.13)

NS

0.32

0.72

0.28 (0.11)

NS

0.21

0.55

MNL%

0.09 (0.10)

0.16 (0.06)*

0.03

2.02

0.29 (0.13)

NS

0.96

2.10

PMNL%

0.09 (0.10)

0.17 (0.06)*

0.56

4.60

0.36 (0.14)

NS

3.00

5.20

PBML subsets:

        

CD4+

0.78 (0.12)

NS

187

38.3

0.57 (0.14)

0.06 (0.04)*

147

94.1

CD8α+

0.35 (0.12)

NS

168

306

0.60 (0.16)

0.12 (0.05)*

215

141

CD4+CD8α+

0.34 (0.15)

NS

0.58

1.10

0.37 (0.17)

NS

0.46

0.79

CD4+CD8α-

0.82 (0.17)

NS

0.95

0.19

0.45 (0.21)

NS

0.35

0.43

CD8αβ+

0.48 (0.16)

NS

0.42

0.45

0.36 (0.17)

NS

0.32

0.56

CD11R1+ total

0.46 (0.12)

NS

0.45

0.52

0.07 (0.08)

0.34 (0.08)*

0.09

0.78

CD11R1+CD8α+

0.46 (0.13)

NS

0.11

0.13

0.31 (0.16)

NS

0.73

1.60

CD11R1+CD8α-

0.27 (0.11)

0.13 (0.06)*

0.39

0.88

0.27 (0.14)

NS

0.30

0.70

γδ+ T cells

0.46 (0.12)

0.05 (0.04)

233

279

0.30 (0.12)

NS

141

317

B cells

0.41 (0.12)

NS

0.55

0.80

0.14 (0.11)

NS

0.15

0.86

monocytes

0.26 (0.11)

0.11 (0.05)*

0.42

1.00

0.26 (0.13)

NS

0.32

0.91

CD14 +

0.04 (0.09)

NS

0.08

1.90

0.48 (0.18)

NS

1.00

1.10

CD16+

0.25 (0.13)

NS

0.16

0.47

0.05 (0.09)

0.09 (0.05)*

0.04

0.83

  1. 1Traits for which the heritability differed significantly between SPF and non-SPF farms are shown in bold (* p < 0.05). 2 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).