ANF	anti-nutritional factor
BoF	bursa of Fabricius
BW	body weight
DDGS	distillers’ dried grains with solubles
FCR	feed conversion ratio
FFA	fermented feed additive
FI	feed intake
GALT	gut-associated lymphoid tissue
GIT	gastrointestinal tract
IEC	intestinal epithelial cell
IFN	interferon
IL	interleukin
LAB	lactic acid bacteria
LBP	Lactobacillus-based probiotic
LFP	Bacillus licheniformis-fermented product
OTU	operational taxonomic unit
RSM	rapeseed meal
SBM	soybean meal
SCFA	short-chain fatty acid
SFP	Bacillus subtilis-fermented product
TGF-β	transforming growth factor-beta
TLR	toll-like receptor
TNF	tumor necrosis factor
VH	villus height
VH/CD	villus height-to-crypt depth
WG	weight gain