Skip to main content

Table 2 Summary of immune and performance traits for pigs from SPF and non-SPF farms1

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

Health status

SPF

Non-SPF

Number of pigs tested

  

- immune traits

674

606

- performance traits

1549

1093

Measurement (units)

Mean (variance)

Mean (variance)

White blood cells

22.2 (16.9)

24.0 (9.4)

MNL%

70.2 (9.10)

71.2 (11.6)

PMNL%

29.9 (9.10)

28.9 (11.6)

PBML subsets:

  

   CD4+

17.8 (4.87)

18.0 (5.64)

   CD8α+

28.8 (7.16)

27.4 (6.69)

CD4+CD8α+

7.51 (2.99)

7.29 (3.30)

CD4+CD8α-

10.2 (3.83)

11.3 (3.79)

   CD8αβ+

14.2 (4.57)

11.8 (4.02)

   CD11R1+ total

14.0 (4.49)

14.1 (5.38)

CD11R1+CD8α+

5.57 (2.94)

4.48 (2.61)

CD11R1+CD8α-

8.37 (3.11)

8.43 (3.65)

   γδ+ T cells

29.2 (8.36)

33.2 (12.5)

   B cells

12.4 (5.33)

14.5 (6.19)

   Monocytes

10.6 (4.85)

9.86 (4.09)

   CD14+

5.21 (2.48)

6.18 (3.45)

   CD16+

18.0 (5.00)

18.4 (6.26)

APP, μg/ml:

  

   Haptoglobin

0.78 (0.62)

0.69 (0.65)

   TTR

442.6 (170.0)

555.3 (141.7)

   CRP

145.6 (164.6)

144.4 (133.0)

   AGP

744.8 (278.7)

388.3 (165.3)

ADG, kg/d

0.86 (0.16)

0.85 (0.17)

   age (d), at start-test

80.9 (9.4)

94.7 (10.1)

   age (d), at end-test

146 (10.4)

151 (12.1)

Ag density:

  

   all CD8α+ cells

34185 (22820)

28936 (6936)

   CD8α+ "dim" cells

15423 (9521)

13422 (3330)

   CD8α+ "bright" cells

66368 (42468)

61150 (14483)

   all CD8β+ cells

27046 (16257)

20692 (4932)

  1. 1 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).