Fig. 2

Effect of allicin on urea nitrogen-related fermentation parameters in the rumen in vitro. Urea nitrogen-related fermentation parameters include urea (A), NH3-N (B), gas production (C) and volatile fatty acid concentration (D). The data were expressed as mean ± SEM. Total volatile fatty acids at 24 h of fermentation include acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, and isovaleric acid (E). The data were expressed as mean ± SEM. ✽and a and b represent a significant difference in the difference between treatments not used at this time point (p < 0.05)