Table 3.

Estimates of the phenotypic difference of log_e-transformed sample/positive ratios for IgG and IgM natural antibodies against four antigens and for total IgG between pigs that subsequently died versus survived in the nursery and/or finisher following a natural polymicrobial disease challenge

	Nursery		Finisher		Nursery + Finisher
	Estimatea (SE)	p-value	Estimate (SE)	p-value	Estimate (SE)	p-value
KLHb-Gf	−0.009 (0.039)	0.811	−0.101 (0.032)	0.002	−0.075 (0.027)	0.005
LPSc-G	−0.020 (0.034)	0.564	−0.080 (0.028)	0.005	−0.062 (0.024)	0.009
LTAd-G	−0.069 (0.048)	0.148	−0.039 (0.040)	0.921	−0.026 (0.033)	0.435
PDGe-G	−0.018 (0.023)	0.455	−0.062 (0.019)	0.001	−0.045 (0.016)	0.005
Ave-Gh	−0.031 (0.028)	0.265	−0.063 (0.022)	0.006	−0.053 (0.020)	0.006
KLH-Mg	−0.013 (0.045)	0.773	−0.038 (0.038)	0.307	−0.034 (0.030)	0.258
LPS-M	−0.027 (0.045)	0.541	−0.035 (0.037)	0.340	−0.042 (0.030)	0.160
LTA-M	−0.051 (0.070)	0.460	−0.067 (0.058)	0.250	−0.021 (0.047)	0.657
PDG-M	−0.030 (0.041)	0.457	−0.044 (0.034)	0.194	−0.045 (0.028)	0.105
Ave-Mi	−0.060 (0.041)	0.884	−0.045 (0.034)	0.177	−0.036 (0.28)	0.191
IgG-Tj	−0.042 (0.038)	0.266	−0.091 (0.032)	0.004	−0.069 (0.026)	0.008

^aDifference in log_e (sample/positive ratio) of pigs that died minus that of pigs that survived

^bKLH = keyhole limpet hemocyanin

^cLPS = lipopolysaccharide

^dLTA = lipoteichoic acid

^ePDG = peptidoglycan

^fG = isotype IgG

^gM = isotype IgM

^hAve-G = the average of log_eNAb IgG across the four antigens

ⁱAve-M = the average of log_eNAb IgM across the four antigens

^jIgGT = the S/P ratio for total IgG level in plasma