Figure 4.
Serum glucose and insulin of steers in response to lipopolysaccharide (LPS) and branched-chain AA (BCAA). Treatments were a 2 × 2 factorial arrangement of intravenous infusion (1 mL/min) of 100 mL sterile saline containing either 0 μg or 1.0 to 1.5 μg of LPS per kg of BW (−LPS vs. +LPS), and abomasal infusion of an essential AA solution that supplied either 0 or 35 g/d BCAA (−BCAA vs. +BCAA). Effects for serum glucose were LPS × BCAA × h (P = 0.10), LPS × h (P < 0.01), BCAA × h (P = 0.05), LPS × BCAA (P = 0.65), LPS (P = 0.42), and BCAA (P = 0.28). Effects for serum insulin were LPS × BCAA × h (P = 0.21), LPS × h (P = 0.80), BCAA × h (P = 0.15), LPS × BCAA (P = 0.44), LPS (P = 0.08), and BCAA (P = 0.83). *P < 0.05 between treatments at specific hour. Arrows on x-axis indicate time of feeding, and error bars are SEM.