ADG	Average daily gain
ADFI	Average daily feed intake
F/G	Feed-to-gain ratio
LC-MS	Liquid chromatography-mass spectrometry
UPLC	Ultra-performance liquid chromatography
HE	Hematoxylin–eosin
AB-PAS	Alcian Blue–Periodic Acid Schiff
ASV	Amplicon sequence variant
LEfSe	Linear discriminant analysis effect size
PCA	Principal component analysis
OPLS-DA	Orthogonal partial least squares–discriminant analysis
VIP	Variable Importance in Projection
FC	Fold change
KEGG	Kyoto Encyclopedia of Genes and Genomes
GABA	γ-Aminobutyric acid
F/B	Firmicutes-to-Bacteroidetes ratio
FXR	Farnesoid X receptor
GPBAR-1	G protein-coupled bile acid receptor-1
FGF15	Fibroblast growth factor 15
ATP	Adenosine triphosphate
ADP	Adenosine diphosphate
AMP	Adenosine monophosphate
AhR	Aryl hydrocarbon receptor
WNT	Wingless-related integration site
ERK	Extracellular signal-regulated kinase
SCFA	Short-chain fatty acid
DNA	Deoxyribonucleic acid
PCR	Polymerase chain reaction
rRNA	Ribosomal RNA
VH	Villus height
CD	Crypt depth
VH/CD	Villus height-to-crypt depth ratio
SD	Standard deviation
ANOVA	Analysis of Variance
NRC	National Research Council
ARRIVE	Animal Research: Reporting of In Vivo Experiments