Table 3.

Serum metabolite parameters of low (LRFI) and high (HRFI) residual feed intake pigs in control and Mycoplasma hyopneumoniae + Lawsonia intracellularis dual-challenged (MhLI) groups at days post inoculation (dpi) 21

Item	Treatment				SEM	P-value
	LRFI-control	HRFI-control	LRFI-MHLI	HRFI-MHLI		MHLI	Line	MHLI x Line
BUN1, mg/dL	34.6	28.1	37.7	31.0	6.499	0.546	0.408	0.981
NEFA, mmol/liter	0.11	0.06	0.10	0.13	0.034	0.232	0.846	0.137
Glucose, μmol/liter	21.9	51.9	31.5	40.9	11.58	0.933	0.185	0.278
Glucagon, pmol/liter	0.91	1.01	0.70	0.79	0.443	0.541	0.853	0.981
Insulin, pmol/liter	56.0	81.3	68.3	103.0	22.51	0.237	0.334	0.756

Estimates are represented by 6 pigs per line x challenge.

¹BUN = blood urea nitrogen.