Fig. 3

Effect of treatment on serum cytokine concentrations before (d 8) and after (d 10) challenge. Serum was collected at 14:00 h each day (4 h post- challenge). Control treatment (CON) = pigs fed basal diet (0.0% β-mannanase) with saline injection. Enzyme treatment (ENZ) = pigs fed enzyme diet (0.056% β-mannanase) with saline injection. Immune system stimulation treatment (ISS) = pigs fed enzyme diet (0.056% β-mannanase) with LPS (Escherichia coli serotype O55:B5) injection. n = 10 per treatment. ^a,bWithin a graph, bars without a common superscript differ, P < 0.05