Feruloyl esterase produced by certain microorganisms can help breakdown plant fiber. We investigated effects of inoculating feruloyl esterase-producing lactic acid bacteria (FLAB) in alfalfa silage on production performance and blood and liver markers of inflammation and oxidative stress in lactating dairy goats. Alfalfa was ensiled for 1 mo without additive (control, CON), with Limosilactobacillus reuteri YM13 without feruloyl esterase activity (YM13), or with a feruloyl esterase-producing L. r