Plasma cortisol (A), TNF-α (B), IL-6 (C) and IL-10 (D) concentrations in pigs challenged with LPS. Piglets were born to sows fed adequate (AP, 12.1%), low (LP, 6.5%) and high (HP, 30%) protein levels throughout gestation. On D47, piglets received an i.p. injection of LPS from Escherichia coli (serotype O111:B4) at a dose of 100 μg/kg of body weight. Blood samples were taken before (0 h) and after LPS challenge (1 h, 3 h, 6 h). Data are expressed as LS-means + SE (AP, n = 15; LP, n = 18; HP, n = 9). Significant differences between diet groups are indicated by asterisks (* P < 0.05, ** P < 0.01; Tukey-Kramer test).
Tuchscherer et al. BMC Veterinary Research 2012 8:232 doi:10.1186/1746-6148-8-232